Source: http://www.google.com/patents/US7620506?dq=%22robert+sheehan%22
Timestamp: 2017-07-26 13:21:28
Document Index: 80929820

Matched Legal Cases: ['art.\n5', 'art 40', 'art 40', 'art 40', 'art 41', 'art 41', 'art 40', 'art 38', 'art 36', 'arts 36', 'art 38', 'art 40', 'art 40', 'arts 36', 'art 40', 'art 40', 'art 41', 'Application No. 03758900', 'Application No. 2004']

Patent US7620506 - Measurement electronic device system - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA plurality of measurement electronic device units (10, 20) each having a measurement detector connected thereto and thus having a measuring function are connected in series by connectors to be capable of mutually conveying measurement data and signals, and one (10) of the plural measurement electronic...http://www.google.com/patents/US7620506?utm_source=gb-gplus-sharePatent US7620506 - Measurement electronic device systemAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7620506 B2Publication typeGrantApplication numberUS 10/532,810PCT numberPCT/JP2003/013662Publication dateNov 17, 2009Filing dateOct 24, 2003Priority dateOct 27, 2002Fee statusLapsedAlso published asCN1708673A, CN100403278C, EP1557648A1, EP1557648A4, US20060041394, WO2004038340A1Publication number10532810, 532810, PCT/2003/13662, PCT/JP/2003/013662, PCT/JP/2003/13662, PCT/JP/3/013662, PCT/JP/3/13662, PCT/JP2003/013662, PCT/JP2003/13662, PCT/JP2003013662, PCT/JP200313662, PCT/JP3/013662, PCT/JP3/13662, PCT/JP3013662, PCT/JP313662, US 7620506 B2, US 7620506B2, US-B2-7620506, US7620506 B2, US7620506B2InventorsKenji Kuwayama, Akio SegawaOriginal AssigneeCitizen Holdings Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (17), Non-Patent Citations (2), Referenced by (7), Classifications (11), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetMeasurement electronic device system
US 7620506 B2Abstract
1. A measurement electronic device system comprising:
a plurality of measurement electronic device units each having a measurement detector connected thereto and having a measuring function, the plural measurement electronic device units being connected in series by connectors to be capable of mutually conveying measurement data and signals, and one of the plural measurement electronic device units serving as a parent device having a function of transmitting/receiving measurement data and signals to/from an external device,
wherein each of said plural measurement electronic device units has a memory storing a measured value, and said parent device has a means for issuing a one-time measured value save command to said plural measurement electronic device units including said parent device, in response to a request from the external device, to thereby cause said plural measurement electronic device units to simultaneously store in the respective memories the current values being measured by the respective detectors at the time of issuance of the one-time measured value save command.
2. The measurement electronic device system according to claim 1,
wherein said measurement electronic device unit serving as the parent device has a means for causing all said measurement electronic device units including said parent device which are connected in series to save the measured values by the respective detectors in the memories, also in response to an externally supplied measured value save command.
3. The measurement electronic device system according to claim 2,
wherein said measurement electronic device unit serving as the parent device has a means for selectively changing connection of a signal line connected to the other measurement electronic device units to one of a signal line from an external device and a signal line of an internal output.
4. The measurement electronic device system according to claim 2,
wherein each of said measurement electronic device units except the parent device has a means for disconnecting mutually coupled signal lines to change connection to a signal line from an external part.
5. The measurement electronic device system according to claim 2,
wherein each of said plural measurement electronic device units includes: a storing means for storing an operation parameter; and an arithmetic means for performing an arithmetic operation on the measured value saved in the memory, based on the parameter stored in the storing means.
6. The measurement electronic device system according to claim 5,
wherein said measurement electronic device unit serving as the parent device further includes a sum calculating means for calculating a sum of individual operation results calculated by the arithmetic means in the measurement electronic device units designated out of said plural measurement electronic device units.
7. The measurement electronic device system according to claim 2, wherein each of said plural measurement electronic device units comprises:
a main body housing the connector for mutual series connection and said memory storing a measured value; and a display unit attachable/detachable to/from the main body, the display unit including: a display displaying the measured value; and operation keys, and the main body and the display unit including connectors that directly connect the main body and the display unit mechanically and electrically when the display unit is attached to the main body and that allow the main body and the display unit to be electrically connected via a connecting line when the display unit is detached from the main body.
8. The measurement electronic device system according to claim 1,
9. The measurement electronic device system according to claim 8,
10. The measurement electronic device system according to claim 8,
11. The measurement electronic device system according to claim 10,
12. The measurement electronic device system according to claim 8, wherein each of said plural measurement electronic device units comprises:
13. The measurement electronic device system according to claim 1,
14. The measurement electronic device system according to claim 13,
15. The measurement electronic device system according to claim 14,
16. The measurement electronic device system according to claim 1,
17. The measurement electronic device system according to claim 16,
18. The measurement electronic device system according to claim 17, wherein each of said plural measurement electronic device units comprises:
a main body housing the connector for mutual series connection and said memory storing a measured value; and a display unit attachable/detachable to/from the main body, the display unit including: a display displaying the measured value and the parameter; and operation keys, and the main body and the display unit including connectors that directly connect the main body and the display unit mechanically and electrically when the display unit is attached to the main body and that allow the main body and the display unit to be electrically connected via a connecting line when the display unit is detached from the main body.
19. The measurement electronic device system according to claim 16, wherein each of said plural measurement electronic device units comprises:
a main body housing the connector for mutual series connection and said memory storm a measured value; and a display unit attachable/detachable to/from the main body, the display unit including: a display displaying the measured value and the parameter; and operation keys, and the main body and the display unit including connectors that directly connect the main body and the display unit mechanically and electrically when the display unit is attached to the main body and that allow the main body and the display unit to be electrically connected via a connecting line when the display unit is detached from the main body.
20. The measurement electronic device system according to claim 1, wherein each of said plural measurement electronic device units comprises:
a main body housing the connector for mutual series connection and said memory storing a measured value; and a display unit attachable/detachable to/from the main body, the display unit including: a display displaying the measured value; and operation keys, and the main body and the display unit including connectors that directly connect the main body and the display unit mechanically and electrically when the display unit is attached to the main body and that allow the main body and the display unit to be electrically connected via a connecting line when the display unit is detached from the main body. Description
direction (±)
child device 1
child device 2
Further, an electronic changeover switch SW1 is provided in the input/output control part 40 of the parent device, the changeover switch SW1, with a movable contact “c” thereof being connected to the sampling line 46 and with one fixed contact “a” thereof being connected, together with an input line of a sampling signal inputted from the external device interface 170, to an external sampling signal input port of an I/O 40 a that is an input/output port of the input/output control part 40 for the CPU bus 43. The other fixed contact “b” is connected to an internal sampling signal output port of the I/O 40 a. The switching of the changeover switch SW1 is controlled by the CPU 31 that sends a command signal through the I/O 40 a upon detection of a key operation on the not-shown display unit or an operation of a not-shown DIP switch. Incidentally, the switching operation may be directly performed by the DIP switch. In this case, this changeover switch SW1 may be provided outside the input/output control part 40.
The child device 1 also has a changeover switch SW2 provided in the input/output control part 41. Its movable contact “c” is also connected to the sampling line 46, and a fixed contact “a” together with an input line of a sampling signal inputted from the external device interface 170 is connected to an external sampling signal input port of an I/O 40 a that is an input/output port of the input/output control part 41 for a CPU bus 43. The other fixed contact “b” is connected to the sampling line 46 on the-upstream device interface 80 side.
The changeover switch SW1 in the parent device shown in FIG. 6 is switched to the fixed contact “b” side (a CPU side in FIG. 7) as shown in the drawing, and the changeover switches SW2 in the child devices 1 to 3 are all switched to the fixed contact “b” side as shown in FIG. 6, so that the sampling lines 46 in the child devices 1 to 3 are all directly connected to one another to be connected to the internal sampling signal output port of the I/O 40 a in the input/output control part 40 through the sampling line 46 in the parent device.
Here, when a storage request command is inputted from the external device 5 to the RS-232C input/output control part 38 through the external device interface 60 of the parent device, the CPU 31 recognizes this to generate a sampling command with a fixed pulse width measured by the timer 35 and outputs it to the sampling line 46 via the I/O 40 a and the changeover switch SW1. Consequently, the sampling command is inputted simultaneously to the measurement control part 36 of the parent device and all the measurement control parts 36 of the child devices 1 to 3 whose sampling lines 46 are directly connected. This causes the parent device and the child devices 1 to 3 to start processing for measured value storage simultaneously at each rising instant of the sampling command.
The right half of FIG. 7 shows a case of another measured value storage mode, and when a measurement start command is inputted from the external device 5 to the RS-232C input/output control part 38, the CPU 31 recognizes this to generate a sampling command with a fixed pulse width measured by the timer 35, at a predetermined cycle to output it to the sampling line 46 via the I/O 40 a and the changeover switch SW1. Consequently, as in the above-described case, processing for measured value storage is executed in the parent device and all the child devices 1 to 3 at each rising instant of the sampling command.
As shown in the right half of FIG. 8, when the changeover switch SW1 of the parent device is in a state of being switched to the fixed contact “a” side (CPU side in FIG. 8), only while the sampling signal from the external device is continuously inputted to the input/output control part 40 through the external device interface 170 of the parent device, the CPU 31 recognizes this from I/O 40 a to output a sampling command with a fixed pulse width to the I/O of the input/output control part 40 at a predetermined cycle using the timer 35, as in the case described with FIG. 7 when the measurement start command is received, and the sampling command is inputted to the measurement control parts 36 of the parent device and the child devices 1 to 3 from the sampling signal output port of the input/output control part 40 through the changeover switch SW1 and the sampling lines 46. Therefore, the parent device and the child devices 1 to 3 simultaneously start executing the processing for the measured value storage at each rising instant of the sampling command.
The signal line to which the reset signal of the external device is inputted from the external device interface 170 of the parent device is connected to a reset signal input port of the I/O 40 a of the input/output control part 40 and is also connected to the reset line 47. Further, the reset line 47 on the downstream device interface 70 side of the child device is also connected to the reset signal input port of the I/O 40 a of the input/output control part 41.
When the changeover switch SW3 in the child device 1 is in the switching state shown in FIG. 9, upon input of the reset signal to the external device interface 170 of the parent device, the reset signal is inputted simultaneously to the I/O 40 a of the parent device and the I/Os 40 a of the child devices through the reset lines 47. The CPUs 31 of the respective units recognize this to reset (clear) the storage of the measured values stored in the temporary storage memories 37 and the RAMs 32 or the data storage RAMs 33 of the respective units.
Each of the parent device and child device is comprised of a main body 10A or 20A and a display unit 10B or 20B, and the display unit 10B, 20B is attachable/detachable to/from the main body 10A, 20A. In each of the parent device and the child device, the main body 10A, 20A is constituted of an upper unit 10 a, 20 a and a lower unit 10 b, 20 b that are integrated by fitting.
Pairs of locking hooks stand on an upper portion of the lower unit 10 b, 20 b, being arranged along a front face and a rear face thereof respectively, and they are hooked in pairs of locking holes 62 formed in a front face and a rear face of the upper unit 10 a, 20 a to integrally hold the upper unit 10 a, 20 a and the lower unit 10 b, 20 b. In a bottom face of the lower unit 10 b, 20 b, a mounting groove 60 passing therethrough in a width direction and a mounting groove 67 passing therethrough in a longitudinal direction are formed, and protrusions, though not shown, for catching rail portions of a later-described DIN rail extend along lower edges of both inner side faces of the mounting groove 60, one of the protrusions being biased toward a protruding direction by a spring and being pushable inward against this biasing force.
Further, as is clearly shown especially in FIG. 12, pairs of locking hooks 63 also stand on an upper portion of the upper unit 10 a, 20 a of the main body 10A, 20A, being arranged along a front face and a rear face thereof, and pairs of locking holes 64 are formed at positions, corresponding the pair of locking hooks 63, in a front face and a rear face of the display unit 10B, 20B. In addition, a fitting frame 66 is formed along a peripheral edge of an upper face of the upper unit 10 a, 20 a. As shown in the drawings except FIG. 12, when the display unit 10B, 20B is attached to the main body 10A, 20A, a lower edge portion of the outer periphery of the display unit 10B, 20B is fitted in the fitting frame 66 of 10 a, 20 a, and the locking hooks 63 of the upper unit 10 a, 20 a are locked in the locking holes 64 of the display unit 10B, 20B to integrally hold the both. A large number of ventilation slits 65 are formed in a peripheral surface of a casing of the upper unit 10 a, 20 a. As shown in FIG. 12, the connector 18 (pins and pin holes are omitted in the drawing) corresponding to the display unit interface 180 shown in FIG. 3 and FIG. 4 is provided on the upper face of the upper unit 10 a, 20 a of the main body 10A, 20A, and a connector (a connector 19 shown in FIG. 17) similarly corresponding to the display unit interface 190 is provided on a lower face of the display unit 10B, 20B. When the display unit 10B, 20B is attached to the main body 10A, 20A, these connectors 18 and 19 are fitted to each other so that the display unit interfaces 180 and 190 are coupled together.
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