VOLUME MEASUREMENT SYSTEM AND METHOD THE SAME THEREOF

A volume measurement method includes: receiving multiple pulse signals when a device under test (DUT) starts passing through a sensing gate; recording multiple X-axis values corresponding to multiple positions of the DUT in response to each pulse signal, and reading the multiple sensing data to calculate a Y-axis value and a Z-axis value corresponding to each X-axis value, wherein the multiple sensing data is obtained by sensing the DUT through the sensing gate; recording a maximum X-axis value corresponding to a final position of the DUT in response to a final pulse signal when the DUT finishes passing through the sensing gate; setting the maximum of the multiple Y-axis values corresponding to the multiple X-axis values as a maximum Y-axis value, and setting the maximum of the multiple Z-axis values corresponding to the multiple X-axis values as a maximum Z-axis value; and calculating a volume of the DUT based on the maximum X-axis value, the maximum Y-axis value and the maximum Z-axis value. The disclosure further includes a volume measurement system.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefit of Taiwan application serial no. 112129874, filed on Aug. 9, 2023. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of specification.

TECHNICAL FIELD

The disclosure relates to a measurement system, and in particular relates to a volume measurement system and a method the same thereof

BACKGROUND

With the continuous development of e-commerce platforms, the volume of goods transported in B2C and C2C models is increasing year by year. For logistics and warehousing businesses, the volume of goods directly affects the overall logistics storage and transportation costs. If the measurement of the volume of goods is not accurate, it will increase the cost of logistics storage and transportation. Therefore, regardless of whether it is warehouse storage or transportation, it is necessary to rely on a more precise volume measurement system to control the storage and transportation status of goods.

Currently, volume measurement systems on the market generally use time of fly (TOF) technology. However, when measuring the volume of goods with metallic or reflective materials, errors may easily occur due to reflection. If shielding technology is adopted, the material of the goods bearing surface must be penetrable for a through-beam sensor. However, high-precision shielding technology cannot be introduced to the high-performance automated conveyor belt.

In the era of rapid development of e-commerce platforms, where the daily volume of goods transported is measured in tens of thousands, automated equipment is often paired with conveyor belts to enhance work efficiency. How to take into account both the high efficiency of automated conveyance and the high precision of volume measurement of goods is an urgent problem that needs to be solved.

SUMMARY

A volume measurement system, which includes a sensing gate, a pedometer, and a processor, is provided in the disclosure. The sensing gate is configured to sense a device under test to obtain multiple sensing data. The pedometer is configured to generate multiple pulse signals. The processor is coupled to the sensing gate and the pedometer, and is configured to: receive the multiple pulse signals when the device under test starts passing through the sensing gate; record multiple X-axis values corresponding to multiple positions of the device under test in response to each of the pulse signals, and read the multiple sensing data to calculate a Y-axis value and a Z-axis value corresponding to each of the X-axis values; record a maximum X-axis value corresponding to a final position of the device under test in response to a final pulse signal among the multiple pulse signals when the device under test finishes passing through the sensing gate; set a maximum of the multiple Y-axis values corresponding to the multiple X-axis values as a maximum Y-axis value, and set a maximum of the multiple Z-axis values corresponding to the multiple X-axis values as a maximum Z-axis value; and calculate a volume of the device under test based on the maximum X-axis value, the maximum Y-axis value and the maximum Z-axis value.

A volume measurement method is further provided in the disclosure, including: obtaining multiple sensing data by sensing a device under test through a sensing gate; receiving multiple pulse signals generated by a pedometer when the device under test starts passing through the sensing gate; recording multiple X-axis values corresponding to multiple positions of the device under test in response to each of the pulse signals, and reading the multiple sensing data to calculate a Y-axis value and a Z-axis value corresponding to each of the X-axis values; recording a maximum X-axis value corresponding to a final position of the device under test in response to a final pulse signal among the multiple pulse signals when the device under test finishes passing through the sensing gate; set a maximum of the multiple Y-axis values corresponding to the multiple X-axis values as a maximum Y-axis value, and set a maximum of the multiple Z-axis values corresponding to the multiple X-axis values as a maximum Z-axis value; and calculate a volume of the device under test based on the maximum X-axis value, the maximum Y-axis value and the maximum Z-axis value.

Based on the above, the volume measurement system and the method the same thereof provided by the disclosure may determine that there is an object at the sensing position when the sensing signal is blocked. On one hand, a feedback type sensor with a ranging function is disposed in the Z-axis direction to sense whether there is a feedback signal from the object, thereby obtaining the height value of the object. On the other hand, a through-beam type sensor is disposed in the Y-axis direction to sense whether the information is shielded by the object, thereby obtaining the width value of the object. Furthermore, the volume of an object may be calculated by determining the maximum length of the object through a pedometer, and by searching for the maximum height value and maximum width value of the object from the height value and width value of the object at each position. Therefore, the disclosure may overcome common issues in the volume measurement system and the method the same thereof using TOF technology, which are often affected by metals and reflective objects. It takes into account both the high efficiency of automated conveyance and the high precision of volume measurement of goods.

DETAILED DESCRIPTION OF DISCLOSED EMBODIMENTS

FIG.1is a schematic diagram of a volume measurement system1according to an embodiment of the disclosure. Referring toFIG.1, the volume measurement system1includes a sensing gate11, a pedometer12, a processor13, and a conveyor platform14.

FIG.2is a schematic diagram of a sensing gate11of a volume measurement system1according to an embodiment of the disclosure. Please refer toFIG.1andFIG.2at the same time, the sensing gate11is configured to sense a device under test to obtain multiple sensing data. Architecturally speaking, the sensing gate11includes a first side bracket111, a second side bracket112and an upper bracket113. The first side bracket111and the second side bracket112are spaced apart approximately parallel to the Y-axis and parallel to each other. The upper bracket113, parallel to the Z-axis, spans across and connects the top ends of the first side bracket111and the second side bracket112. The sensing gate11further includes m sets of through-beam type sensors114and n feedback type sensors115. The m sets of through-beam type sensors114are disposed on the first side bracket111and the second side bracket112. The n feedback type sensors115are disposed on the upper bracket113.

The m sets of through-beam type sensors114includes m transmitters114aandmreceivers114b. Specifically, each set of through-beam type sensors114includes corresponding transmitters114a_1to114a_m and receivers114b_1to114b_m. The m transmitters114a_1to114a_m are arranged on the first side bracket111for transmitting through-beam type sensing signals114c_1to114c_m one by one. Each of the transmitters114a_1to114a_m is separated by a first separation distance. The m receivers114b_1to114b_m are arranged on the second side bracket112and are aligned in sequence with each of the transmitters114a_1to114a_m for receiving each through-beam type sensing signal114c_1to114c_m transmitted by each transmitter114a_1to114a_m. Each of the receivers114b_1to114b_m is separated by a first separation distance. In other words, under the condition that there is no object blocking between the transmitters114a_1to114a_m and the receivers114b_1to114b_m in each set of through-beam type sensors114, the through-beam type sensing signals114c_1to114c_m emitted by the transmitters114a_1to114a_m may be received by the aligned receivers114b_1to114b_m. The through-beam type sensor114is, for example, a through-beam type infrared sensor or other similar device, which is not limited by the disclosure.

The n feedback type sensors115are arranged on the upper bracket113. Each of the feedback type sensors115_1to115_nis configured to emit electromagnetic signals, and to receive the reflected signals that are reflected by an object of the electromagnetic signals it has emitted itself. Each of the feedback type sensors115_1to115_nis separated by a second separation distance. The feedback type sensor115is, for example, a photoelectric sensor or other similar device, which is not limited by the disclosure.

Referring toFIG.1again, the pedometer12is configured to generate multiple pulse signals. The pedometer12is, for example, a pulse wave generator, a pulse generator, a signal pulse wave generator, a programmable pulse generator or other similar devices, and the disclosure is not limited thereto.

The processor13is coupled to the sensing gate11and the pedometer12. The processor13is, for example, a central processing unit (CPU), a physical processing unit (PPU), a programmable microprocessor, an embedded control chip, digital signal processor (DSP), an application specific integrated circuit (ASIC), or other similar devices.

The conveyor platform14is disposed between the first side bracket111and the second side bracket112and below the upper bracket113to drive the device under test to pass through the sensing gate11parallel to the X-axis. After the electromagnetic signal emitted by the feedback type sensor115disposed on the upper bracket111of the sensing gate11contacts the conveyor platform14, the feedback type sensor115may receive the reflected signal. On the other hand, when the conveyor platform14drives the device under test to pass through the sensing gate11parallel to the X-axis, in addition to the fact that the electromagnetic signal emitted by the feedback type sensor115disposed on the upper bracket113of the sensing gate11is reflected back to the feedback type sensor115via the device under test, the through-beam type sensing signal emitted by at least one transmitter114adisposed on the first side bracket111of the sensing gate11is blocked by the device under test, causing the aligned receiver114bto be unable to receive the through-beam type sensing signal. The conveyor platform may be a conveyor belt device.

Next, the operation of measuring the volume of the device under test through the processor13in the volume measurement system1of the disclosure is further introduced.

First, the conveyor platform14drives the device under test to pass through the sensing gate11along a direction parallel to the X-axis. When the device under test starts passing through the sensing gate11, the processor13receives multiple pulse signals12agenerated by the pedometer12in sequence. In response to each pulse signal12a, the processor13records multiple X-axis values corresponding to multiple positions of the device under test. The multiple positions of the device under test refer to the multiple positions of the device under test in the physical space during the process of being driven by the conveyor platform14to pass through the sensing gate11.

Each time the processor13receives a pulse signal, it synchronously records the X-axis value corresponding to the position of the device under test in the physical space. At the same time, the through-beam type sensor114and the feedback type sensor115of the sensing gate11sense the device under test when the object is in each position to obtain corresponding sensing data.

When the processor13records each X-axis value corresponding to each position of the device under test when passing through the sensing gate11, the sensing data obtained after the sensing gate11senses the device under test is read to calculate the Y-axis value and Z-axis value corresponding to each X-axis value. Each X-axis value corresponds to the position of the device under test, and the Y-axis value corresponding to the X-axis value is the height of the device under test sensed by the sensing gate11when it is at the position corresponding to the X-axis value. The Z-axis value corresponding to the X-axis value is the width of the device under test sensed by the sensing gate11when it is at the position corresponding to the X-axis value.

Next, the part where the processor13calculates the Y-axis value corresponding to each X-axis value (i.e., the height of the device under test sensed by the sensing gate11at each position) is described.FIG.3is a schematic diagram illustrating a through-beam type sensor33of a sensing gate11according to an embodiment of the disclosure. Referring toFIG.3, the m sets of through-beam type sensors33have m transmitters33a, all of which are disposed on the first side bracket31. The first transmitter33a_1is closest to the horizontal plane14aof the conveyor platform14and is located at the first height Y1above the horizontal plane14aof the conveyor platform14; the remaining transmitters33a_2to33a_m are arranged vertically in an ascending sequence on the first side bracket31, starting from a position vertically above a first separation distance Yrfrom the first transmitter33a_1, in a direction away from the horizontal plane14aof the conveyor platform14.

The m sets of through-beam type sensors33also has m receivers33b_1to33b_m, all of which are disposed on the second side bracket32. Each of the receivers33b_1to33b_m respectively corresponds to each of the transmitters33a_1to33a_m. The first side bracket31and the second side bracket32are located on two sides of the conveyor platform.

FIG.4is a schematic diagram illustrating calculation of the Y-axis value corresponding to each X-axis value according to an embodiment of the disclosure. Referring toFIG.4, when the device under test DUT is passing through the sensing gate11, the through-beam type sensing signals (e.g.,33c_1to33c_3) emitted by a part of the transmitters (e.g.,33a_1to33a_3) of the through-beam type sensors33on the sensing gate11are blocked by the device under test DUT, causing the aligned receivers (e.g.,33b_1˜33b_3) to be unable to receive the through-beam type sensing signal.

T Therefore, during the process of the device under test DUT passing through the sensing gate11, when the device under test DUT is located at each position, the processor13cannot receive part of the through-beam type sensing signals33c_1˜33c_m that are blocked and calculates the quantity a of the corresponding part of the through-beam type sensors33. The Y-axis value corresponding to each X-axis value is calculated according to the quantity a of the part of the through-beam type sensors33.

The processor13calculates the Y-axis value corresponding to each X-axis value according to formula (1):

Wherein, Yiis the Y-axis value corresponding to the X-axis value when the device under test DUT is located at the ithposition, Y1is the first height, a is the quantity of the part of the through-beam type sensors blocked by the device under test DUT, Yris the first separation distance, and m is the total quantity of transmitters43a_1to43a_m.

For example, as shown inFIG.4, assuming that the device under test DUT is located at the second position, the through-beam type sensing signals33c_1to33c_3emitted by the transmitters33a_1to33a_3are blocked by the device under test DUT, causing the aligned receivers33b_1to33b_3to be unable to receive the through-beam type sensing signals33c_1to33c_3. Therefore, when the device under test DUT is located at the second position, the Y-axis value sensed by the sensing gate11is Y2=Y1+(4−1)×Y1=Y1+3Yr, Y1+3Yris the height sensed by the sensing gate11when the device under test DUT is located at the second position.

Next, the part where the processor13calculates the Z-axis value corresponding to each X-axis value (i.e., the width of the device under test sensed by the sensing gate11at each position) is described.FIG.5is a schematic diagram illustrating a feedback type sensor55of a sensing gate11according to an embodiment of the disclosure. Referring toFIG.5, the feedback type sensors55_1to55_nare all disposed on the upper bracket53. Before measuring the volume of the device under test, the distance between the feedback type sensor55_1to55_nand the horizontal plane14aof the conveyor platform14needs be measured firstly through each feedback type sensor55_1to55_n, and this distance is set as the sensing reference value Zbase1to Zbasen.

Specifically, when the conveyor platform14is stationary, each feedback type sensor55_1to55_nof the sensing gate11emits an electromagnetic signal55c. The electromagnetic signal forms a reflected signal55dafter contacting the horizontal surface14aof the conveyor platform14, n feedback type sensors55_1to55_nall receive the reflected signal55dto obtain the sensing reference values Zbase1to Zbasenof each feedback sensor55_1to55_n. That is, the feedback type sensor55_1obtains the sensing reference value Zbase1, the feedback type sensor55_nobtains the sensing reference value Zbasen. After obtaining the sensing reference values Zbase1to Zbasenof each feedback type sensor55_1to55_n, the height of the device under test on the conveyor platform14may be measured.

FIG.6is a schematic diagram illustrating calculation of the Z-axis value corresponding to each X-axis value according to an embodiment of the disclosure. Referring toFIG.6, when the conveyor platform14is operating, the n feedback type sensors55_1to55_nreceive the reflected signal55dreflected from the electromagnetic signal55cto obtain the sensing feedback values Zvalue1to Zvaluenof each feedback type sensor55_1to55_n. That is, the feedback type sensor55_1obtains the sensing feedback value Zvalue1, the feedback type sensor55_nobtains the sensing feedback value Zvaluen, and so on.

For example, as shown inFIG.6, the electromagnetic signals55cemitted by the feedback type sensors55_1to55_2and55_6to55_7contact the horizontal surface14aof the conveyor platform14and form a reflected signal55dto obtain the sensing feedback values Zvalue1to Zvalue2, Zvalue6to Zvalue7of the feedback type sensors55_1to55_2,55_6to55_7. Wherein, the sensing feedback values Zvalue1to Zvalue2and Zvalue6to Zvalue7of the feedback type sensors55_1to55_2and55_6to55_7are equal to the sensing reference values Zbase1to Zbase2and Zbase6to Zbase7.

The electromagnetic signal55cemitted by the feedback type sensors55_3to55_5in the feedback type sensor55contacts the device under test DUT and forms a reflected signal55dto obtain the sensing feedback values Zvalue3to Zvalue5of the feedback type sensors55_3to55a_5, wherein the sensing feedback values Zvalue3to Zvalue5of the feedback type sensors55a_3to55a_5are not equal to the sensing reference values Zbase3to Zbase5. The processor13may determine that the device under test DUT is passing through the sensing gate11based on the sensing feedback values Zvalue3to Zvalue5of the feedback type sensors55_3to55_5being different from the sensing reference values Zbase3to Zbase5.

When the processor13determines that the device under test DUT is passing through the sensing gate11, the processor13calculates the Z-axis value corresponding to each X-axis value according to formula (2):

Wherein, Zvalueiis the Z-axis value corresponding to the X-axis value when the device under test DUT is located at the ithposition, b is the quantity of part of the feedback type sensors55, Zris the second separation distance, and n is the total quantity of feedback type sensors55.

As shown inFIG.6, assuming that the device under test DUT is located at the second position, the electromagnetic signals55cemitted by the feedback type sensors55_3to55_5of the feedback type sensors55contact the device under test DUT. Therefore, the Z-axis value sensed by the sensing gate11when the device under test DUT is located at the second position is Zvalue2=2Zr, 2Zris the width sensed by the sensing gate11when the device under test DUT is located at the second position.

Referring toFIG.1again, the volume measurement system1further includes the pedometer axle15. The pedometer axle15is coupled to the pedometer12and the conveyor platform14, and operates synchronously with the conveyor platform14. When the device under test is placed on the conveyor platform14and driven by the conveyor platform14, the pedometer axle15is configured to calculate the distance that the device under test moves in the physical space driven by the conveyor platform14. The processor13may thereby record each X-axis value corresponding to each position of the device under test and calculate the Y-axis value and Z-axis value corresponding to each X-axis value.

FIG.7is a schematic diagram illustrating the synchronous operation of the pedometer axle15and the conveyor platform14according to an embodiment of the disclosure. Referring toFIG.7, when the pedometer axle15completes one rotation, the conveyor platform14drives the device under test DUT to move in the physical space for a unit distance value EM, and the quantity of pulse signals12agenerated by the pedometer12is the unit pulse number EC.

Before the device under test DUT starts to pass through the sensing gate11, the processor13resets the accumulated pulse number Eicounted in response to each pulse signal12ato the initial pulse number E0. Once the device under test DUT is located at the starting position S and begins to pass through the sensing gate11along the X-axis direction, the processor13receives the pulse signal12a, counts the accumulated pulse number E; in response to each pulse signal12aand records the X-axis value corresponding to each position of the device under test DUT. That is, the processor13receives a pulse signal12aand synchronously records the X-axis value corresponding to the position of the device under test DUT in the physical space.

When the device under test DUT is located at the final position E, the accumulated pulse number Eiis set to the total pulse number of 1. The final position E of the device under test DUT is the position at the moment when the device under test DUT completely passes through the sensing gate11. The processor13calculates the X-axis value of the device under test at each position from the starting position S to the final position E according to formula (3):

Wherein, Xiis the X-axis value of the device under test DUT recorded in response to the ithpulse signal12a, E0is the initial pulse number, Eiis the accumulated pulse number counted in response to the ithpulse signal12a, EM is the unit distance value, EC is the unit pulse number, and l is the total pulse number.

When the device under test DUT finishes passing through the sensing gate11and is located at the final position E, in response to the final pulse signal among multiple pulse signals12a, the processor13records the maximum X-axis value corresponding to the final position E of the device under test DUT. In other words, during the period from when the device under test DUT starts passing through the sensing gate11to when it finishes passing through the sensing gate11, the maximum X-axis value recorded among the X-axis values by the processor13is the maximum length of the device under test DUT.

Then, the processor13searches for the largest one among the multiple Y-axis values corresponding to all the X-axis values, and sets the largest one among the multiple Y-axis values corresponding to the multiple X-axis values as the maximum Y-axis value. This maximum Y-axis value is the maximum height of the device under test DUT. The processor13also searches for the largest one among the multiple Z-axis values corresponding to all the X-axis values, and sets the largest one among the multiple Z-axis values corresponding to the multiple X-axis values as the maximum Z-axis value. This maximum Z-axis value is the maximum width of the device under test DUT.

Once the processor13receives the maximum X-axis value, the maximum Y-axis value and the maximum Z-axis value in the sensing data obtained by the sensing gate11, the volume of the device under test DUT is calculated based on the maximum X-axis value, maximum Y-axis value and maximum Z-axis value.

FIG.8is a schematic diagram of establishing two-dimensional point cloud data81aand point cloud diagram82in a volume measurement system according to an embodiment of the disclosure. In one embodiment, during the process of the device under test DUT passing through the sensing gate11, in addition to recording each X-axis value Xicorresponding to each position and calculating the Y-axis value Yiand Z-axis value Zvalueicorresponding to each X-axis value Xi, the processor13further establishes two-dimensional point cloud data81arelated to each X-axis value Xiaccording to the Y-axis value Yiand Z-axis value Zvalueicorresponding to each X-axis value Xi. Specifically, during the process of the device under test DUT passing through the sensing gate11, the device under test DUT has a cloud section81for each X-axis value Xicorresponding to each position. The cloud section81is orthogonal to the X-axis. Therefore, the cloud section81includes the Y-axis value Yiand the Z-axis value Zvalueicorresponding to the X-axis value Xi, that is, the two-dimensional point cloud data81acorresponding to the X-axis value.

After the processor13establishes the two-dimensional point cloud data81arelated to each X-axis value Xi, the processor13may further establish a point cloud diagram82related to the device under test DUT according to the multiple two-dimensional point cloud data81acorresponding to all X-axis values Xi. In other words, the point cloud graph82includes the Y-axis value Yiand the Z-axis value Zvalueicorresponding to each of all X-axis values Xi.

FIG.9is a flowchart of a volume measurement method9according to an embodiment of the disclosure. Referring toFIG.1,FIG.4,FIG.6,FIG.7andFIG.9at the same time, for the process of the volume measurement method9inFIG.9, reference may be made to the volume measurement system1inFIG.1. While the sensing gate11in the volume measurement system1senses the device under test and obtains sensing data, the processor13measures the volume of the device under test through the process of the volume measurement method9. The process of volume measurement method9includes steps S901, S902, S904, S906, S908and S910.

In step S902, when the device under test DUT starts passing through the sensing gate11, multiple pulse signals12agenerated by the pedometer12are received.

In step S904, in response to each pulse signal12a, multiple X-axis values corresponding to multiple positions of the device under test DUT are recorded, and the sensing data is read to calculate the Y-axis value and Z-axis value corresponding to each X-axis value, in which the sensing data is obtained by sensing the device under test DUT through the sensing gate14. Details about recording the X-axis value corresponding to each position of the device under test DUT and reading the sensing data to calculate the Y-axis value and Z-axis value corresponding to each X-axis value have been explained in the previous paragraphs, and are not repeated herein.

In step S906, when the device under test DUT finishes passing through the sensing gate14, in response to the final pulse signal among multiple pulse signals12a, the maximum X-axis value corresponding to the final position of the device under test DUT is recorded, and the maximum X-axis value is the maximum length of the device under test DUT. Details about recording the maximum X-axis value corresponding to the final position E of the device under test DUT in response to the final pulse signal among multiple pulse signals12ahave been explained in the previous paragraphs, and are not repeated herein.

In step S908, the largest one among the multiple Y-axis values corresponding to the multiple X-axis values is set as the maximum Y-axis value, and the largest one among the multiple Z-axis values corresponding to the multiple X-axis values is set as the maximum Z-axis value. The maximum Y-axis value is the maximum height of the device under test DUT, and the maximum Z-axis value is the maximum width of the device under test DUT. Details about setting the largest one among the multiple Y-axis values corresponding to the multiple X-axis values as the maximum Y-axis value, and setting the largest one among the multiple Z-axis values corresponding to the multiple X-axis values as the maximum Z-axis value have been explained in the previous paragraphs, and are not repeated herein.

In step S910, the volume of the device under test DUT is calculated based on the maximum X-axis value, the maximum Y-axis value, and the maximum Z-axis value.

Before measuring the volume of the device under test DUT, the distance between the through-beam type sensors53a_1to53a_n and the conveyor platform14is measured through the through-beam type sensors53a_1to53a_n of the sensing gate14. This distance is set as the sensing reference value Zbase1to Zbasen, whether a device under test DUT is passing through the sensing gate14is determined by using the sensing reference values Zbase1to Zbasen. Therefore, before step S902of the volume measurement method9, step S901is also included.

In step S901before step S902, when the conveyor platform14is stationary, the sensing reference values Zbase1to Zbasenof the feedback type sensors53a_1to53a_n are obtained by emitting electromagnetic signals from the feedback type sensors53a_1to53a_n of the sensing gate11and receiving the reflected signal55dof the electromagnetic signal55creflected by the conveyor platform11.

Once the sensing reference values Zbase1to Zbasenof the feedback type sensors53a_1to53a_n are obtained, in step S802, it may be determined that the device under test DUT is passing through the sensing gate11through the sensing reference values Zbase1to Zbasen.

To sum up, in the volume measurement system and the volume measurement method provided by the disclosure, through the concept of determining that there is an object at the sensing position when the sensing signal is blocked, on one hand, a feedback type sensor with a ranging function is disposed in the Z-axis direction to sense whether there is a feedback signal from the object, thereby obtaining the height value of the object. On the other hand, a through-beam type sensor is disposed in the Y-axis direction to sense whether the information is shielded by the object, thereby obtaining the width value of the object. Furthermore, the volume of an object may be calculated by determining the maximum length of the object through a pedometer, and by searching for the maximum height value and maximum width value of the object from the height value and width value of the object at each position. Therefore, the volume measurement system and the volume measurement method provided by the disclosure may overcome common issues in the volume measurement system and the method the same thereof using TOF technology, which are often affected by metals and reflective objects. It takes into account both the high efficiency of automated conveyance and the high precision of volume measurement of goods.