baber/WOPTO huggingface dataset:
Patent WO-2018059364-A1 (WO)
Title: 机器人焊接定位装置
Inventor: FANG GUANGZHONG
IPC: B23K37/047
Filed: 2017-09-25
Abstract: 一种机器人焊接定位装置，包括用于固定待焊接件的夹具组件、与夹具组件相固定的旋转盘（1）、用于使旋转盘（1）旋转并固定的旋转定位装置，所述旋转定位装置包括固定轴（21）和定位件，所述固定轴（21）与所述旋转盘（1）固定，且所述旋转盘（1）能以固定轴（21）轴线为中心旋转，所述旋转盘（1）设有若干定位孔（11），所述若干定位孔（11）呈以固定轴（21）轴线为中心的环形间隔设置，所述定位件包括定位销轴（3），所述定位销轴（3）受力轴向运动以使定位销轴（3）的一端移动至所述定位孔（11）内。通过设置可旋转的旋转盘以控制待焊接件转动，便于焊接机器人对待焊接件进行多方位的焊接，且不需要设置更多的焊接机器人，以提高焊接效率、提高焊接质量，并能大大降低成本。
Patent WO-2018059421-A1 (WO)
Inventor: JIANG CHUANGXIN
IPC: H04L5/00
Filed: 2017-09-27
Abstract: Provided are a sounding reference signal transmission and receiving method, device, and computer storage medium. The transmission method comprises: the receiving end sounding reference signal transmission mode is indicated by means of at least one of the following modes: pre-defined configuration, high-layer signaling, and dynamic signaling, the transmission mode comprising: transmitting by means of a first transmission area all or a part of the sounding reference signal for obtaining the measurement feedback information of the second transmission area. The receiving method comprises: a receiving end receives the indication information by means of at least one of the following modes: pre-defined configuration, high-layer signaling, and dynamic signaling; the receiving end determines, according to the received indication information, the sounding reference signal receiving mode, the receiving mode at least comprising: receiving in the first transmission area all or a part of the sounding reference signal for obtaining the measurement feedback information of the second transmission area.
Patent WO-2019006912-A1 (WO)
Title: Systems and methods for sharing network interfaces betweencontainers in an embedded computing device
Inventor: PAPO ALEKSANDAR
IPC: G06F9/455
Filed: 2017-10-19
Abstract: Systems and methods are provided for sharing a network interface between operating systems in an embedded device. A host operating system provides a network bridge. First and second operating systems provide first and second respective shared network interfaces connected to the bridge. A first external network interface is linked to the first shared network interface via a control client. The first external network interface is shared with the second operating system.
Patent WO-2018095173-A1 (WO)
Title: 人脸交换方法、装置、主播终端及观众终端
Inventor: HOU WENPEI
IPC: H04N7/14
Filed: 2017-10-20
Abstract: 本发明提出一种人脸交换方法、装置、主播终端及观众终端，其中，该方法应用于主播终端，包括：开启人脸交换提示；根据人脸交换提示，识别确定主播终端的第一预设图像中的第一人脸图像；接收观众终端发送的第二人脸图像；利用第二人脸图像替换第一人脸图像，得到换脸后的第一图像。通过本发明提供的人脸交换方法、装置、主播终端及观众终端，实现了在不同终端进行连线时，将不同终端中的人脸图像进行交换，扩展了人脸交换技术的应用范围，增强了连线过程中的趣味性和互动性，改善了用户体验。
Patent WO-2019090565-A1 (WO)
Inventor: CAI SHIJUN
IPC: C12N7/04
Filed: 2017-11-09
Abstract: Disclosed is a second-order culture method for producing a suspended Vero cell vaccine, wherein same comprises the following steps: suspension culture growth of Vero cells, inoculation of a virus, dilution or addition of a production medium, secondary growth of cells, and optionally harvesting and purifying the virus fluid to produce the vaccine.
Patent WO-2018095301-A1 (WO)
Inventor: XUE HUI
IPC: G01T1/29
Filed: 2017-11-20
Abstract: A method for measuring beam dosage distribution, comprising the following steps: S1: a computer detecting a beam signal and determining the state of a beam, and if the beam is in an open state, entering step S2, and if the beam is in a closed state, entering step S3; S2: a detector module performing second γ photon detection, and transmitting a detected second γ photon signal to the computer; S3: the detector module performing positron mode detection, and transmitting a detected positron mode signal to the computer; and S4: the computer performing signal processing on the second γ photon signal and the positron mode signal which are obtained via detection, and obtaining the spatial distribution of a beam dosage. The method can be used to detect the distribution of a beam dosage after a beam passes through a simulated human body, so as to further detect an emission dosage of a beam emission end and improve the accuracy of dosage distribution detection.
Patent WO-2018082715-A1 (WO)
Inventor: TANG XUN
IPC: H04W74/08
Filed: 2017-11-24
Abstract: La présente invention concerne un procédé de communication multiconnexion basé sur un faisceau d'ondes, un dispositif terminal, et un dispositif de réseau. Le procédé comprend les étapes suivantes : sur la base de connexions de faisceaux multi-onde établies entre un terminal et une station de base, le terminal ou la station de base filtre, d'après les résultats de mesurage d'un pilote de liaison montante ou d'un pilote de liaison descendante respectivement, des faisceaux d'ondes de messages spécifiques dans la portée des messages communs de la station de base ; le terminal ou la station de base choisit de supprimer au moins une connexion de faisceau d'ondes qui a déjà été établie. En autorisant le filtrage et la suppression d'une connexion de faisceau multi-onde entre un terminal et une station de base, l'invention maintient une qualité élevée de connexions de faisceau d'ondes, ce qui empêche une interruption de transmission de données entre la station de base et l'UE et garantit la communication normale entre la station de base et l'UE.
Patent WO-2018103578-A1 (WO)
Title: 洗衣机
Inventor: SEN UNHI
IPC: D06F37/02
Filed: 2017-11-30
Abstract: 本发明提供一种能良好地获得作用于洗涤物的机械力，并能提高清洗性能的洗衣机。全自动洗衣机具备：外桶(20)，配置于机壳内，并能蓄水；球状的内桶(30)，能以从水平方向倾斜的横旋转轴(R2)为中心进行旋转地配置于外桶(20)内，并容纳洗涤物；内桶电机(70)，配置于外桶(20)的外侧，使内桶(30)旋转；搅拌体(40)，在内桶(30)内配置于内桶电机(70)的相反侧，以沿着内桶(30)的内表面的方式形成为剖面凹弯曲状；以及传递机构部(150)，将内桶电机(70)的旋转传递给搅拌体(40)，使搅拌体(40)向与内桶(30)的旋转方向相反的方向进行旋转。
Patent WO-2018205626-A1 (WO)
Title: 母板和显示面板
Inventor: ZHANG HAN
IPC: G02F1/13
Filed: 2017-12-18
Abstract: 一种母板（100，200）和显示面板（101，201），母板（100，200）包括多个显示面板（101，201）、多个第一测试端子(151，251)和多个第一单向导通电路(121，221)。每个显示面板（101，201）具有显示区(102，202)，且每个显示面板（101，201）包括从显示区(102，202)外并排延伸到显示区(102，202)内的多根第一信号线(111，211)；每个显示面板（101，201）的多根第一信号线(111，211)分别与多个第一测试端子(151，251)之一电连接；多个第一单向导通电路(121，221)在显示区(102，202)外分别与多根第一信号线(111，211)电连接，且配置为使得信号仅可从多个第一测试端子(151，251)传输到每个显示面板（101，201）的多根第一信号线(111，211)。母板（100，200）和显示面板（101，201）可以确定母板（100，200）中因静电释放而导致不良的显示面板（101，201）。
Patent WO-2019153257-A1 (WO)
Title: Flexible display apparatus
Inventor: FAN XIAOFEI
IPC: G09F9/30
Filed: 2018-02-09
Abstract: A flexible display apparatus (100), comprising a flexible display screen (102), a housing (104) and a support structure (106). The support structure (106) is connected to the housing (104) and one end of the flexible display screen (102), and the support structure (106) is capable of driving the flexible display screen (102) to lengthen or shorten with respect to the housing (104) so as to switch back and forth between an extended state and a recovered state. The support structure (106) comprises a slide rail assembly (108), the slide rail assembly (108) comprising a plurality of slide rail blocks (110) arranged along a telescoping direction of the support structure (106), the plurality of slide rail blocks (110) being slidably connected and together forming a support plane (112) supporting the flexible display screen (102), the support plane (112) being located on a same plane when in an extended state or a recovered state.
Patent WO-2018171695-A1 (WO)
Title: 无线连接建立方法及装置
Inventor: WANG MAN
IPC: H04W40/24
Filed: 2018-03-23
Abstract: 本申请提供一种无线连接建立方法及装置。该方法包括：第一网络节点向第二网络节点发送第一资源配置信息，第一网络节点根据第一资源配置信息或者接收的第二网络节点发送的第二资源配置信息与终端和第二网络节点建立无线连接。从而，不需要等到具体无线连接发起前或者无线连接建立的过程中再交互资源配置信息，可节省第一网络节点与第二网络节点间不同流程建立的控制面时延。
Patent WO-2018192414-A1 (WO)
Title: QoE的确定方法、装置、存储介质及处理器
Inventor: ZHUO KEQIU
IPC: H04N21/442
Filed: 2018-04-12
Abstract: 提供了一种用户体验质量QoE的确定方法、装置、存储介质及处理器，该用户体验质量QoE的确定方法包括：确定互联网协议电视IPTV或者OTT的视频播放的关键性能指标KPI；根据KPI确定预定时刻用户体验的平均意见评分MOS值；利用在预定时段内计算的多个MOS值确定MOS值的时间序列；根据MOS值的时间序列确定用户体验质量QoE。
Patent WO-2019033788-A1 (WO)
Title: Data line
Inventor: SANG JINXIN
IPC: H01R13/04
Filed: 2018-04-27
Abstract: Disclosed is a data line, comprising a circuit board (10), a charging/data transmission terminal (12) electrically connected to the circuit board (10), and a cable (14) electrically connected to the circuit board (10), wherein the charging/data transmission terminal (12) is used for being electrically connected to an electronic device terminal; and the charging/data transmission terminal (12) is connected to the circuit board (10) at a certain angle. By means of the special connection designs between the charging/data transmission terminal (12), the circuit board (10) and the cable (14), in the process of using the data line, the distance of the data line protruding from a data line interface of the electronic device terminal can be reduced, so that the impact of the data line on the comfort of using the electronic device terminal is reduced.
Patent WO-2019041857-A1 (WO)
Title: Scene analysis based operating state prediction method of power distribution network including distributed power
Inventor: GU WEI
IPC: H02J3/46
Filed: 2018-04-27
Abstract: A scene analysis based operating state prediction method of a power distribution network, comprising the following steps: Step (10): acquiring a network architecture and historical operation information of a power distribution system; Step (20): extracting an output representative scene series segment of a distributed power according to a historical output series of the distributed power; Step (30): obtaining a future single time section T0 multi-scene prediction result by matching similar historical scenes; Step (40): establishing a future multi-time section operating scene tree; Step (50): depth-traversing various scenes in the future multi-time section operating scene tree, performing power distribution network flow analysis for the various scenes, and calculating an out-of-limit risk of a power distribution network line current and an out-of-limit risk of a bus voltage to obtain a future operating state changing trend of the power distribution network including the distributed power. According to the method, the operating state of the power distribution network including the distributed power is predicted, so that the development trend of the operating state of the power distribution network is predicted in real time by means of multi-scene analysis, and risk prediction can be timely implemented.
Patent WO-2018196867-A1 (WO)
Inventor: CAI SHENGMING
IPC: H04L47/80
Filed: 2018-04-28
Abstract: A GPON system based service bandwidth allocation method and device provided by the embodiments of the present application facilitate in satisfying delay requirements of services during the process of an ONU transmitting service flows according to the allocated bandwidth. In the method, the network element obtains a second data amount according to a service transmission parameter of the delay-sensitive service, the second data amount being the data amount transmitted by the ONU using a fixed bandwidth during the first uplink period. When a first data amount is greater than the second data amount, the network element determines that it is necessary to configure a first dynamic bandwidth, the first dynamic bandwidth being the dynamic bandwidth required by the ONU in the first uplink period. The network element obtains a third data amount according to the first data amount and the second data amount, the third data amount being the data amount transmitted by the ONU using the first dynamic bandwidth in the first uplink period. The network element completes, according to the second data amount and the third data amount, the configuration of the fixed bandwidth and the first dynamic bandwidth.
Patent WO-2018205974-A1 (WO)
Title: 一种草本纤维原料规范整理设备及方法
Inventor: LIU ZHENGCHU
IPC: D01B1/22
Filed: 2018-05-10
Abstract: 本发明公开了一种草本纤维原料规范整理设备与方法，其中设备包括：送料装置、碾压装置、分离装置和收尘装置，送料装置向碾压装置送料；碾压装置包括机架及设在机架上的多对碾压罗拉，从动罗拉的安装轴可上下位移，碾压装置还包括对从动罗拉的安装轴施加向下的预紧力的弹簧；分离装置用于将碎屑与韧皮纤维分离；收尘装置包括壳体、与壳体内部连通的收尘管和使壳体与收尘管内部形成负压的抽风机。本发明解决的技术问题在于克服现有的分离韧皮纤维与表皮的设备存在分离不彻底或者损伤韧皮纤维并且污染环境的缺点，提供一种可分离韧皮纤维与表皮同时不损伤纤维并且环保的草本纤维原料规范整理设备与方法。
Patent WO-2018219115-A1 (WO)
Inventor: LIU ZHENGCHU
IPC: C12M1/00
Filed: 2018-05-10
Abstract: 一种草本纤维原料运动式湿润发酵设备及方法，其中的草本纤维原料运动式湿润发酵设备包括：壳体，壳体是封闭的；机架（1），机架（1）位于壳体内，包括多个竖直的支撑柱（11，12，13，14）；多组水平输送装置（21，22，23，24，25，26，27，28，29），多组水平输送装置（21，22，23，24，25，26，27，28，29）上下排列，每组水平输送装置（21，22，23，24，25，26，27，28，29）包括设在支撑柱（11，12，13，14）上的主动轮（211）、从动轮（212）和与主动轮（211）和从动轮（212）配合的输送带（213），相邻的输送带（213）的输送方向相反，且位于下方的输送带（213）的输入端在与其输送方向相反的方向上突出于相邻的上方的输送带（213）的输出端以接收从相邻的上方的输送带（213）的输出端落下的草本纤维原料。该草本纤维原料运动式湿润发酵设备及方法克服现有的发酵装置占地大的缺点，提供一种占地小的草本纤维原料运动式湿润发酵设备及方法。
Patent WO-2019104952-A1 (WO)
Inventor: BAO MIN
IPC: H04L29/08
Filed: 2018-05-17
Abstract: 本发明属于物联网分析技术领域，尤其是涉及一种基于城域级物联网感知数据的场景智能分析系统与方法。一种基于城域级物联网感知数据的场景智能分析系统，包括城域级物联网感知层、城域级物联网网络层、城域级物联网数据层和城域级物联网应用层。本发明涉及的一种基于城域级物联网感知数据的场景智能分析系统与方法，在城域级空间范围内，利用多种类型的物联网采集数据，对数据进行多尺度的抽象，例如比较宏观的整个城区的尺度，比较微观的城区某个局部的尺度；利用各种因素执行场景的模式识别分析，可以综合空气颗粒物状况、污染源排放状况、风向和风速、城区交通状况等因素，进行多参量模型的分析，可以运用人工智能的手段进行决策。
Patent WO-2018219153-A1 (WO)
Inventor: YAO JIZHONG
IPC: H01L51/42
Filed: 2018-05-17
Abstract: 本发明涉及一种钙钛矿薄膜后处理设备，包括溶液喷涂清洗部分和/或溶剂沉积部分，溶液喷涂清洗部分包括第一传送装置、第一密闭腔室以及溶液喷涂装置、高压气体喷嘴装置和高温干燥装置，高压气体喷嘴装置设置在溶液喷涂装置和高温干燥装置之间，第一传送装置横跨第一密闭腔室。溶剂沉积部分包括传动轴装置、第二密闭腔室以及加热装置和溶剂蒸发装置，溶剂蒸发装置靠近溶液喷涂清洗部分，传动轴装置的转动轴从上下设置的加热装置和溶剂蒸发装置之间通过。本发明还涉及一种钙钛矿薄膜后处理设备的使用方法和应用。本发明对已制备了钙钛矿薄膜基片进行后续清洗和退火处理，对钙钛矿薄膜的缺陷进行修补处理，进一步提高钙钛矿薄膜的质量。
Patent WO-2019227338-A1 (WO)
Title: Systems and methods for traversing spatial data
Inventor: CHAI YI
IPC: H04L12/58
Filed: 2018-05-30
Abstract: A system includes a storage device storing a set of instructions and a processor in communication with the storage device. When executing the set of instructions, the processor is configured to cause the system to obtain a request for data relating to the geographic region and determine a plurality of data groups for storing the data. The processor also causes the system to generate, based on the plurality of data groups, a priority queue including a first buffer scope data and traverse the plurality of data groups. The processor further causes the system to determine whether the spatial index value of a currently traversed data group is equal to or larger than the first reference index value and transmit, to the user terminal, the first buffer scope data in response to the determination that the spatial index value is equal to or larger than the first reference index value.
Patent WO-2019019836-A1 (WO)
Title: Unlocking control method and related product
Inventor: ZHOU YIBAO
IPC: G06F21/32
Filed: 2018-06-19
Abstract: Disclosed in the embodiments of the present application are an unlocking control method and a related product, the method comprising: acquiring scenario parameters of a mobile terminal; acquiring environment parameters of the mobile terminal; selecting a target multi-biometric recognition mode corresponding to the scenario parameters and the environment parameters out of M pre-stored multi-biometric recognition modes; and acquiring S pieces of biometric verification information by means of a target biometric acquisition module corresponding to the target multi-biometric mode, and unlocking the mobile terminal when the S pieces of biometric verification information are successfully verified. By employing the present application, the endurance capability of the entire mobile terminal and the accuracy of biometric acquisition may be improved.
Patent WO-2019184124-A1 (WO)
Title: 风控模型训练方法、风险识别方法、装置、设备及介质
Inventor: MA QIAN
IPC: G06Q10/06
Filed: 2018-07-03
Abstract: 一种风控模型训练方法、风险识别方法、装置、设备及介质。该风控模型训练方法包括：对原始视频数据进行标注，获取正负样本（S11）；对所述正负样本进行分帧和人脸检测，获取训练人脸图片（S12）；对所述训练人脸图片按照预设数量进行分组，获取至少一组目标训练数据（S13）；目标训练数据包括连续N帧的训练人脸图片；对目标训练数据按照预设比例进行划分，获取训练集和测试集（S14）；将训练集中每一组目标训练数据输入到卷积神经网络-长短时递归神经网络模型中进行训练，获取原始风控模型（S15）；采用测试集中每一组目标训练数据对原始风控模型进行测试，获取目标风控模型（S16）。该风控模型训练方法具有训练效率高且识别精度高的优点。
Patent WO-2019029593-A1 (WO)
Title: Shared pilot signals
Inventor: WAGNER SEBASTIAN
IPC: H04L27/26
Filed: 2018-08-09
Abstract: Methods and systems for the transmission of reference symbols in an OFDM transmission system. Reference symbols may be located flexibly with a mini-slot to improve the overhead assigned to the transmission of reference symbols. Reference symbols may be shared between control and data portions of a mini-slot.
Patent WO-2019140893-A1 (WO)
Title: Box-type engine exhaust post-treatment device
Inventor: YANG TIANZUO
IPC: F01N3/28
Filed: 2018-08-14
Abstract: A box-type engine exhaust post-treatment device (100) comprises a housing (1), multiple post-treatment assemblies, and a cavity assembly. The housing (1) comprises a first end cover (10), a first baffle (11), a second baffle (12), a second end cover (13), and a casing (14). A first space (15) is defined between the first end cover (10) and the first baffle (11). The housing (1) comprises an exhaust inlet tube (17) communicating with the first space (15). The cavity assembly comprises a mixing tube (38) and a gas flow mixing device (4). The mixing tube (38) comprises an inner cavity (381), multiple fins (382) surrounding the periphery of the inner cavity (381) and distributed circumferentially, multiple slots (383) corresponding to the multiple fins (382) and communicating with the inner cavity (381), and a perforated tube (384) arranged in the mixing tube (38). The gas flow mixing device (4) is arranged downstream relative to the perforated tube (384).
Patent WO-2019047701-A1 (WO)
Title: Pixel circuit, driving method therefor, and display device
Inventor: GAI CUILI
IPC: G09G3/3233
Filed: 2018-08-16
Abstract: A pixel circuit, a driving method therefor, and a display device, which relate to the technical field of displays. The pixel circuit comprises: a data write sub-circuit (10), which is configured, under the control of a signal from a first signal terminal (S1), to input a signal output from a second signal terminal (S2) to a compensation sub-circuit (20) and a driving sub-circuit (30); the compensation sub-circuit (20), which is configured, under the control of a signal from a third signal terminal (S3), to compensate the driving sub-circuit (30) for the threshold voltage according to a signal output from the data write sub-circuit (10); a light-emitting control sub-circuit (40), which is configured, under the control of a signal from a fourth signal terminal (S4), to input a signal of a first voltage terminal (V1) to the driving sub-circuit (30) and the compensation sub-circuit (20); the driving sub-circuit (30), which is configured to generate a driving current and input the driving current to a light-emitting sub-circuit (50) according to a signal output from the light-emitting control sub-circuit (40) and a signal output from the data write sub-circuit (10); and the light-emitting sub-circuit (50), which is configured to emit light according to the driving current under the control of the second voltage terminal (V2).
Patent WO-2019218518-A1 (WO)
Title: Method and apparatus for constructing bond etf, and computer-readable storage medium
Inventor: LI HAIJIANG
IPC: G06Q40/06
Filed: 2018-08-24
Abstract: Disclosed is a method for constructing a single-market bond ETF. The method comprises: acquiring duration data of constituents of a single-market bond index, and dividing the constituents into multiple groups of bonds; acquiring data corresponding to sampling factors of the constituents, and scoring the constituents in each group of bonds according to the data corresponding to the sampling factors and a pre-set scoring rule; determining the sampling quantity of each group of bonds; taking sample bonds from each group of bonds according to the scores of the constituents in each group of bonds and the sampling quantity; according to trading gain data of the sample bonds, using a gain bias quadratic programming model to calculate the weights of the sample bonds; and combining the sample bonds according to the weights obtained by means of calculation to form a single-market bond ETF. Further provided are an apparatus for constructing a single-market bond ETF, and a computer-readable storage medium. The present application solves the technical problem in the prior art of no bond ETF construction schemes being applicable to debenture bonds.
Patent WO-2019047761-A1 (WO)
Title: Clutch structure and laundry treatment device
Inventor: XING BENFU
IPC: D06F37/30
Filed: 2018-08-30
Abstract: A clutch structure and a laundry treatment device, belonging to the technical field of laundry treatment devices. The clutch structure comprises a drive motor (1), a first output end (11) of the drive motor (1) is connected to a drying fan by means of a pulley (8) in a transmission manner, a second output end (12) of the drive motor drives a driven wheel (5) to rotate, the driven wheel (5) is connected to a laundry treatment drum (100) by means of a second belt (10) to drive the laundry treatment drum to rotate, the driven wheel (5) is swingably mounted on the drive motor (1) by means of a rocker arm (2). A control motor (7) controllably, by means of a spring (6), pulls the rocker arm (2) to move so as to change the position of the driven wheel (5) and adjust the second belt (10) to tension or loosen, realizing the engagement and disengagement between the driven wheel (5) and the second belt (10). The clutch structure realizes separate execution of the drying function of each laundry treatment structure of the laundry treatment device comprising two laundry treatment structures having a drying function, without the need to separately provide a drying and condensing device.
Patent WO-2019062466-A1 (WO)
Title: Real-time normalization modification apparatus and method for pgc demodulation in sine phase modulation interferometer
Inventor: YAN LIPING
IPC: G01B9/02
Filed: 2018-08-31
Abstract: A real-time normalization modification apparatus for PGC demodulation in a sine phase modulation interferometer, containing an optical path structure for measuring an interferometer and monitoring the interferometer; an electro-optic phase modulator is placed in a common reference arm of the two interferometers, and high-frequency sinusoidal wave modulation and low-frequency triangular wave modulation are applied at the same time; the sinusoidal wave modulation is used for generating a phase carrier, and PGC demodulation is performed to obtain an orthogonal signal containing information about a phase to be measured; the triangular wave modulation enables the orthogonal signal to periodically change, and ellipse fitting is performed on a Lissajous figure corresponding to the orthogonal signal, so as to realize the real-time normalized modification of the PGC demodulated orthogonal signal; and a measured displacement is obtained by calculating a phase difference variation of two interference signals, realizing nanoscale displacement measurement. Also provided is displacement detection method based on real-time normalization processing of PGC demodulation in a sine phase modulation interferometer. Non-linear errors caused by changes in a phase modulation depth, a phase delay, a multiplier, a filter gain, etc. in PGC demodulation are eliminated, and there is a sub-nanoscale measurement precision, which is applicable for precise displacement measurement in the field of high-end equipment manufacturing and machining.