CN117214806A - Power grid equipment test board and test system - Google Patents

Abstract

The invention discloses a power grid equipment test board and a test system, and belongs to the technical field of tests, wherein the test board comprises a panel, a plurality of power grid equipment fixing stations and a number and signal acquisition component are arranged on the panel, and the power grid equipment fixing module comprises two cross bars, side plates and sliding grooves fixed on the panel; the signal acquisition component comprises an interface module and a photoelectric testing frame, the photoelectric testing frame comprises a frame body and a photoelectric sensor fixed at the front end of the frame body, a sliding block is arranged at the rear end of the frame body, the sliding block is arranged in a sliding groove and can slide along the length direction of the sliding groove, and the photoelectric sensor is used for acquiring optical signals sent by a light source on power grid equipment. The test system includes the test station. The technical scheme provided by the scheme is not only suitable for simultaneous testing of a plurality of electric energy meters, but also has the characteristics of being suitable for electric energy meters with different sizes and being beneficial to overall size miniaturization design.

Description

Power grid equipment test board and test system

Technical Field

The invention relates to the technical field of testing, in particular to a power grid equipment test board and a test system.

Background

The intelligent power grid is intelligent, is based on an integrated and high-speed two-way communication network, and achieves the aims of reliability, safety, economy, high efficiency, environmental friendliness and safety in use of the power grid through application of an advanced measurement technology, an advanced monitoring technology, an advanced control method and an advanced decision support system technology.

The intelligent electric energy meter is an important component of the intelligent power grid, along with the development of the intelligent electric energy meter technology, the functional module comprises an electric energy measuring unit, a data processing unit and a communication unit, so that the intelligent electric energy meter has an electric energy metering function, and has data processing, automatic control, data interaction and other monitoring functions except for electric energy metering.

According to the requirements on the purposes, performances and functions of the intelligent electric energy meter, the existing intelligent electric energy meter has the characteristics of rich interfaces, various communication modes and different size parameters. In addition, the electric energy meter also comprises a flashing lamp, and the specific application of the flashing lamp can be used for indicating the electric power used by the current electric appliance, such as representing different electric powers through different flashing frequencies.

In the prior art, performance parameters of the electric energy meter before and during use need to be tested, and in order to improve the testing efficiency, the batch test is usually carried out, and the specific technical scheme comprises the following patent names: an electric energy meter test device, the application number is: technical proposal provided by patent application document of CN 202310314370.1; also included are the patent names: an electric energy meter test system, a technical scheme provided by a patent application document with the application number of CN201510705303.8 and the like.

Aiming at the characteristic that the electric energy meter test/detection is generally carried out in batches, the system which is small in size, convenient to complete the fixation of the electric energy meter and suitable for simultaneously testing a plurality of electric energy meters is provided, and is beneficial to reducing the test workload of the electric energy meters and improving the test efficiency of the electric energy meters.

Disclosure of Invention

Aiming at the operating characteristics that the electric energy meter test is generally performed in batches, the invention provides a power grid equipment test board and a test system. The technical scheme provided by the scheme is not only suitable for simultaneous testing of a plurality of electric energy meters, but also has the characteristics of being suitable for electric energy meters with different sizes and being beneficial to overall size miniaturization design.

Aiming at the problems, the power grid equipment test board and the power grid equipment test system provided by the invention solve the problems through the following technical points: the utility model provides a power grid equipment testboard, includes the panel, be provided with a plurality of power grid equipment fixed stations and the signal acquisition part that quantity and power grid equipment fixed stations match on the panel, power grid equipment fixed stations is used for fixed power grid equipment, signal acquisition part is used for gathering or transmitting the signal from power grid equipment, be provided with the power grid equipment fixed module that forms the fixed station of power grid equipment on the panel;

The power grid equipment fixing module comprises two cross bars which are parallel to each other, and also comprises side plates, wherein the number of the side plates is more than or equal to 3;

the side plates are all: one end of the sliding connection device is in sliding connection with one cross rod through a groove body arranged at the bottom side of the end, and the other end of the sliding connection device is in sliding connection with the other cross rod through a groove body arranged at the bottom side of the end, and the sliding connection device is as follows: the side plates can slide relative to the cross bars along the length direction of the cross bars, and the grid equipment fixing station is formed between two adjacent side plates;

the sliding groove is fixed on the panel and is parallel to the cross rod;

the signal acquisition component comprises an interface module and a photoelectric testing frame, the interface module is arranged on the panel, the photoelectric testing frame comprises a frame body and a photoelectric sensor fixed at the front end of the frame body, the rear end of the frame body is provided with a sliding block, the sliding block is arranged in a sliding groove and can slide along the length direction of the sliding groove, and the photoelectric sensor is used for acquiring optical signals sent by a light source on power grid equipment.

In the prior art, regarding electric energy meter testing, the patent application document with the application number of CN202310314370.1 provides a pipelined testing device, and the specific scheme is that a clamping device is arranged on a conveyor belt to position the electric energy meter, and the automatic detection of the electric energy meter is completed by combining with a detection device; the technical scheme provided by the patent application document with the application number of CN201510705303.8 is also an electric energy meter test scheme of a production line. However, with the richness of the functions of the electric energy meter in the prior art, in order to realize electric energy input, related serial port signal test, ethernet communication test, wireless communication module test and light source feedback test, the electric energy meter to be tested and the test system have more wired connection, the increase of the items to be tested also increases the residence time of the electric energy meter at the fixed station, compared with the pipelining test realized by the conveyor belt, the position-fixed power grid equipment test system has the characteristics that the wired connection is convenient, the residence time can effectively balance the relation between the system efficiency and the cost, so the further development of the position-fixed power grid equipment test system is significant to the field.

In the power grid equipment test board provided by the scheme, specific power grid equipment can be an electric energy meter or other power grid equipment, such as an edge physical agent device integrating data acquisition and data processing.

Specifically, the panel is used as the mesa of testboard, specifically is used for providing the support for the back of electric energy meter, and usable is kept flat or the slope sets up, and when setting up for the slope, the downside of panel is as the front side of panel, the fixed module of electric wire netting equipment is used for restraining the side of electric energy meter, specifically is through curb plate and electric energy meter side contact restraint electric energy meter and the relative position of panel, signal acquisition part is used for linking to each other with communication interface/module on the electric energy meter, sets up to including wired communication interface, wireless communication module as required, specifically is used for matching one or more in RS485, RS232, the optic fibre interface for match wired Ethernet communication, be used for matching wireless communication such as loRa, bluetooth, 4G, 5G.

This scheme is a fixed test scheme in position, through setting up to including a plurality of electric wire netting equipment fixed stations and signal acquisition part for this scheme can be applied to simultaneously test a plurality of electric energy meters that are surveyed, compares in common pipeline test based on the conveyer belt, and such test mode is convenient for not only test system and each wired interface connection of electric energy meter that is surveyed, the wireless communication module signal connection that each wireless communication module of test system and electric energy meter that is surveyed correspond, can effectively balance test system's efficiency and cost's relation simultaneously in the required time of test.

In this scheme, include a specific electric energy meter constraint mode of being surveyed, specific: the utility model discloses a power grid equipment fixing station, including two curb plates, the fixed station of electric wire netting equipment forms between two curb plates that link to each other, adopts each curb plate to be one of them horizontal pole sliding connection, the mode of other end and another horizontal pole sliding connection, can be according to specific measured electric energy meter size, the specific position of each curb plate on the reasonable selection horizontal pole length direction for this scheme has the characteristics that are applicable to different sizes measured electric energy meter.

In this scheme, can set up to all enclose into the fixed station of electric wire netting equipment between two arbitrary adjacent curb plates, also can only be used for forming a fixed station of electric wire netting equipment for each curb plate, for example, from the one end of horizontal pole to the other end, with the curb plate serial number for 1#, 2#, 3#, 4#, all form the fixed station of electric wire netting equipment between 1# and 2#, 2# and 3# and 4#. And, also can be 1# and 2#, 3# and 4#. All form the fixed station of electric wire netting equipment between the #, so this scheme can be according to the quantity and the size of being tested electric energy meter, the position of each electric energy meter that is surveyed on the panel of flexible configuration, when testing electric energy meter batch, have the characteristics that do benefit to the miniaturized design of test system whole volume.

In this scheme, interface module sets up to including wired interface module (be arranged in matching one or several among RS485, RS232, the optic fibre interface) and wireless communication module (be arranged in matching wireless communication module such as loRa, bluetooth, 4G, 5G, etc.), sets up simultaneously to still including photoelectric test frame for this scheme can be used for being surveyed the light source condition detection on the electric energy meter, and set up to accomplish the installation of photoelectric test frame on the panel through spout and slider, such mode is convenient for arrange according to the position of specific electric energy meter that is surveyed, adjusts photoelectric sensor's position.

The position fixing of the side plates on the cross bar can be realized through the friction force between the side plates and the cross bar, and other auxiliary fixing devices can also be adopted; the fixing of the position of the slide block in the groove body can be realized by the mutual friction force, and other auxiliary fixing devices can also be adopted.

Preferably, in order to improve the position adjustment efficiency of the side plate, the groove body is provided with a sliding bearing bush, and the sliding bearing bush is specifically applied to: the concave side of the sliding bearing bush is contacted with the side surface of the cross rod, the convex side of the sliding bearing bush is contacted with a set screw which is in threaded connection with the side plate, the size of positive pressure between the sliding bearing bush and the cross rod is adjusted through fastening or loosening the set screw, so that the proper friction force of the side plate along the movement of the cross rod is obtained, if the maximum static friction force between the side plate and the cross rod is insufficient to maintain the force required by the side plate to restrain the side surface position of the electric energy meter to be tested, the set screw is further screwed, the screwing degree can push the side plate to slide along the cross rod through manual work, and the positive pressure between the sliding bearing bush and the set screw can be reasonably adjusted according to the sliding resistance of the side plate on the cross rod. Furthermore, the elastic piece which is arranged between the set screw and the side plate and is compressed and deformed is adopted to realize the locking of the set screw, but the elastic deformation range of the elastic piece should be suitable for the depth of embedding the set screw into the side plate.

As a further technical scheme of the power grid equipment test stand:

the groove bodies are all: the maximum width position of cell body is located the inboard of cell body, and the appearance of horizontal pole and the appearance looks adaptation of cell body, the looks adaptation is: the side plates are prevented from moving along the depth direction of the tank body relative to the cross bars by the action of the outer walls of the cross bars and the side walls of the tank body.

The above scheme provides a specific horizontal pole and curb plate connected mode, adopts this mode, and the connecting leg between horizontal pole and the panel can not influence the position adjustment of curb plate on the horizontal pole, accomplishes the cooperation with the horizontal pole at the tip of curb plate through the horizontal pole after, can make the position coverage of curb plate on the horizontal pole can cover the full length of horizontal pole. The groove body can be arranged into a dovetail groove with the maximum width position positioned at the inner side of the groove body and a circular groove with a non-complete annular section, for example, a regular circular groove with the chord length of the groove opening position smaller than the diameter of the circle is adopted, and the cross section shape of the transverse rod is consistent with the cross section shape of the groove body. The cross section shapes are consistent and used for increasing the contact area of the cross rod and the side plate, when the sliding axle bush is arranged, the surface of the sliding bearing bush is used as the boundary of the groove body on the side plate, and the sliding resistance of the side plate can be linearly regulated by adopting the sliding bearing bush, so that the sliding bearing bush does not need to be arranged to have the same cross section shape.

The interface module comprises an interface board and a plurality of wiring ports arranged on the interface board, and the interface board is detachably connected to the panel.

The above scheme is a specific implementation scheme of the interface module, and the implementation scheme is aimed at: according to specific needs, the interface board with the wiring port suitable for testing is selected and replaced, so that the test bench has better universality. In specific application, the signal processing module for receiving the detection signal and processing the detection signal is connected with the line interface through the expansion module, the expansion module adopts a CH348 chip, the line interface comprises 4 paths of RS485 interfaces, 2 paths of RS232 interfaces and 2 paths of optical fiber interfaces, specifically, one path of USB is expanded into 8 paths of TTL interfaces through the CH348 chip, and then TTL is converted into RS485, RS232 and optical fibers. The above is to the interface module configuration scheme of the common electric energy meter wired interface of being surveyed, and wireless communication module can be independent of the interface board setting, and the specific application is to dispose the wireless communication module that quantity is unanimous with the fixed station quantity of electric wire netting equipment, and each wireless communication module all includes loRa, bluetooth, 4G communication module.

Each interface board is provided with a mounting hole positioned on the panel, and the relationship between the interface board and the mounting hole arranged with the interface board is as follows: the front end of the wiring port is exposed to the front surface of the panel, and the rear end of the wiring port is exposed to the rear surface of the panel.

In the above scheme, the front end of wiring mouth is used for accomplishing the wiring mouth with the mode of grafting wiring and is connected with the electric energy meter that is surveyed, and the rear end of wiring mouth is used for being connected with signal processing module with the mode of grafting wiring, adopts this scheme, aims at realizing: the communication line between the wiring port and the signal processing module can be hidden installation aiming at any replaced interface board, so that the simplicity and the neatness of the test bench panel are facilitated.

Still include the grudging post, the bottom side of grudging post is provided with the device case, the panel slope is installed on the grudging post, and the bottom side of panel is located the place ahead of topside, and the spout is located the top of horizontal pole.

The scheme aims at realizing the following steps: the panel is obliquely arranged, so that the power grid equipment fixing station is positioned in front of a tester, and wiring operation and observation operation are conveniently realized; by utilizing the characteristic that the sliding groove is positioned above the cross bar, the photoelectric sensor positioned at the front end of the frame body maintains the relative position relation with the light source on the electric energy meter to be tested in a falling mode, namely, the photoelectric sensor is positioned below the sliding block, and is easier to maintain to a specific position relative to the mode that the photoelectric sensor is positioned above the sliding block; the device box is used for matching other devices of the test system which do not need to be frequently operated, such as a host computer of the three-phase alternating current-direct current calibrator, a power supply system main body in the test system, a signal processing module main body in the test system and the like, reduces the frequency or amplitude of bending operation of an operator through reasonable functional partition configuration, and is convenient for carrying out reasonable counterweight on the test bench. The panel is configured to have an included angle of 78-85 degrees with a horizontal plane, the panel is specifically applied to the fact that the lateral surface of the lower side of the electric energy meter to be tested is supported on a cross rod below, the lateral surfaces of the two sides are respectively restrained by the lateral surfaces of the lateral plates, the back surface of the panel is supported on the panel, the heights of a power grid equipment fixing station and the bottom of the test bench are 40-160 cm, and the optimal mode is that: the fixed module of electric wire netting equipment has two sets of or more to the fixed module of electric wire netting equipment arranges in proper order on the panel along the direction of height, and each horizontal pole is the horizon bar, and during the concrete operation, for the fixed module of electric wire netting equipment that highly is lower, like the fixed module of electric wire netting equipment is less than 1m, the operator can adopt the gesture of squatting to accomplish relevant test operation, for the fixed module of electric wire netting equipment that highly is higher, like the fixed module of electric wire netting equipment is in 1m, the operator can adopt the gesture of standing to accomplish relevant test operation.

The shape of the frame body is adjustable, and the height of the photoelectric sensor relative to the panel can be changed and the position of the photoelectric sensor in the distance direction of the cross bars can be changed by adjusting the shape of the frame body.

The scheme aims at realizing the following steps: after the position of the sliding block in the sliding groove is fixed, the specific position of the photoelectric sensor can be changed through adjusting the shape of the frame body, the position comprises the height, the height is used for matching the thickness of the electric energy meter to be tested, the position comprises the position in the distance direction of the cross bars, the position is used for matching the specific setting position of the light source on the electric energy meter to be tested, and the technical scheme for testing the light source of the electric energy meter can be matched through the adjustment of the frame body. In specific application, on the surface of the electric energy meter to be measured, the common light source comprises a light-emitting lamp positioned on the surface layer of the electric energy meter to be measured, and also comprises a light guide column structure with the end part positioned on the surface of the electric energy meter to be measured.

The frame body comprises a first rod body, a spring, a first sleeve, a second sleeve and a second rod body;

one end of the first rod body is fixedly connected with the sliding block, the first sleeve is sleeved at the other end of the first rod body, the first sleeve can slide relative to the first rod body in the length direction of the first rod body, one end of the spring is fixedly connected with the first rod body, and the other end of the spring is fixedly connected with the first sleeve;

The second sleeve is fixedly connected with the first sleeve, and the second rod body is arranged on the second sleeve and has adjustable extension length relative to the second sleeve;

the photoelectric sensor is fixed at the end part of the second rod body;

the first sleeve slides relative to the first rod body in the length direction of the first rod body, so that the height of the photoelectric sensor relative to the panel is changed;

the position of the photoelectric sensor in the distance direction of the cross bars is changed by adjusting the extending length;

the second sleeve can rotate around the axis of the first rod body.

The scheme provides a specific support body form, and specifically, first body of rod and first sleeve pipe form the connector of adjustable length, and through the spring, when the back is surveyed the electric energy meter between panel and photoelectric sensor centre gripping, the spring takes place the elastic elongation, and the restoring force of spring makes photoelectric sensor's optical signal acquisition end can hug closely with the electric energy meter that is surveyed to reduce because light source light leak, external environment light to the influence that test result produced. The first rod body slides along the sliding groove under the action of the sliding block to be used for matching the general position of the frame body relative to the electric energy meter to be measured, and the specific position adjustment of the photoelectric sensor relative to the light source is realized through the adjustment of the extension length of the second rod body relative to the second sleeve and the rotation of the second sleeve around the first rod body. Compared with the first sleeve which rotates around the axis of the first rod body relative to the first rod body, the torsion return force of the spring can produce adverse effects on the positioning accuracy of the photoelectric sensor so as to avoid the spring from being twisted, or the torsion prevention structure with a more complex structure is avoided to be provided for the spring, the second sleeve can rotate around the axis damping rotation of the first rod body in the sliding groove preferably through the sliding block, the damping is provided specifically through the friction force of the sliding block and the sliding groove, the preferable application is that the side surface of the sliding block is wrapped with the rubber sleeve positioned outside the sliding block, and the required rotation damping is generated by the extrusion of the groove wall of the sliding groove through the rubber sleeve. It is easy to understand that the horizontal pole interval direction is the interval direction of two horizontal poles in the fixed module of electric wire netting equipment, in panel slope setting, spout are located the application of horizontal pole top, in order to avoid because the structure dead weight leads to the second body of rod can not maintain required extension length, extension length adjustable configurable is including setting up the locking piece on the second sleeve pipe, through the locking piece is for the second body of rod stretches out for the second sleeve pipe and provides the restraint, reaches the purpose of control second body of rod extension length, the locking piece can adopt locking screw to further set up to: the second body of rod is the side and has planar shaft structure, and the pore canal that is used for installing the second body of rod on the second sleeve pipe is that one side has planar hole structure to utilize above plane to avoid the second body of rod to rotate for the second sleeve pipe, regard the plane on the second body of rod as its contact surface with the locking piece, in order to improve the cooperation precision of second body of rod and second sleeve pipe, set up to the second sleeve pipe and be the multistage structure, only constitute second sleeve pipe one section on processing hole structure, hole structure is used for forming the high accuracy cooperation with the second body of rod, and other sections are used for realizing second sleeve pipe and first sleeve pipe connection, increase second sleeve pipe's length in order to facilitate the user to carry and draw photoelectric sensor, adjust photoelectric sensor for the height of panel.

When in specific use, the method is set as follows: the first rod body and the first sleeve are both perpendicular to the panel and are provided with spiral springs, the springs are coaxial with the first rod body, the second sleeve is parallel to the second rod body and parallel to the panel, and the optical signal acquisition end of the photoelectric sensor is aligned to the panel.

The photoelectric sensor is characterized in that a sealing ring is arranged at the optical signal acquisition end of the photoelectric sensor, the sealing ring is an elastic ring for blocking light, and a pore channel at the inner side of the sealing ring is used as a light hole during optical signal acquisition.

In the scheme, the sealing ring which is the elastic ring is matched with the spring, and the gap between the photoelectric sensor and the wall surface of the electric energy meter to be measured is reduced through the elastic restoring force of the spring by the sealing ring, so that the influence of light source light leakage and external environment light on the light signal acquisition precision is further optimized, and the device is particularly suitable for scenes with high requirements on the light source light intensity acquisition precision. When the photoelectric sensor is particularly used, light rays emitted by the light source enter the optical signal acquisition end of the photoelectric sensor through the light holes. In specific application, in order to realize the light blocking purpose, the sealing ring adopts an opaque rubber ring, and is further arranged to be consistent with the color of light emitted by the light source, so as to avoid interference of the sealing ring on the detection of the color of the light of the photoelectric sensor.

The photoelectric sensor comprises a sensor shell and a sensor arranged on the inner side of the sensor shell;

the sensor shell is of a light-blocking cylinder structure;

the end, close to the panel, of the sensor shell is an acquisition end for acquiring light signals of a light source, and a sealing ring coaxial with the sensor shell is arranged on the acquisition end;

the light-blocking glass of shutoff this end is installed on the one end that the sensor housing kept away from the panel, light-blocking glass is used for reducing the interference of sensor housing outside light to the inboard light intensity of sensor housing, and light-blocking glass is as the printing opacity part of the inboard light condition of sensor housing of observation outside the sensor housing.

In the prior art, the photoelectric sensor is generally provided with an optical signal acquisition end only at one side, and other directions except the optical signal acquisition end are not light-transmitting. Specifically, the sensor is a component of photoelectric effect in the photoelectric sensor, the sensor shell is used as a packaging component of the sensor, a bearing component of a signal wire connector on the photoelectric sensor and a connecting component of the signal wire connector and the second rod body, a light-blocking barrel structure is adopted, the purpose of avoiding light leakage of light emitted by the light source and influence of external environment light on the light in an inner space is achieved, an optical signal acquisition end is obtained at one end of the sensor shell through a simple structure, an observation port is obtained at the other end of the sensor shell, the observation port is used as an observation port for a user to observe the situation that the light source and the optical signal acquisition end are aligned, the sensor does not influence the light emitted by the light source to the observation port, for example, when a test result of the test system on the light source deviates from an expected state, the light emitting condition of the light source can be observed manually through the observation port, and whether the test result deviates from the expected state because of the relative position deviation of the light acquisition end and the light source is judged. The light blocking glass is used for reducing or avoiding interference of external environment light on light inside the sensor shell, and particularly unidirectional glass or dark glass or coated glass can be adopted, when the light signal inside the sensor shell needs to be observed, if the external environment light is stronger, a simple shading structure for shading the external environment light on the light blocking glass can be formed by adopting the action of a palm holding ring so as to observe the flickering condition or brightness condition of the light source.

The utility model also discloses a power grid equipment test system, including testboard and test device, the testboard is the power grid equipment testboard of arbitrary one above, test device package signal processing module, signal acquisition part and photoelectric sensor all link to each other with signal processing module's signal input part. The system is a specific application of the test bench.

The invention has the following beneficial effects:

the structural design of the test board is convenient for the connection of the test system and each wired interface of the electric energy meter to be tested, is convenient for the signal connection of each wireless communication module of the test system and the corresponding wireless communication module of the electric energy meter to be tested, and can effectively balance the relation between the efficiency and the cost of the test system in the time required by the test.

According to the scheme, the specific positions of the side plates on the length direction of the cross rod can be reasonably selected according to the specific size of the electric energy meter to be measured, so that the scheme has the characteristics of being applicable to the electric energy meters to be measured with different sizes.

According to the scheme, the positions of the tested electric energy meters on the panel can be flexibly configured according to the number and the size of the tested electric energy meters, and the electric energy meters are tested in batches, so that the electric energy meter testing system has the characteristic of being beneficial to the overall size miniaturization design of the testing system.

The scheme can be used for detecting the light source condition on the electric energy meter to be detected, and is convenient for adjust the position of the photoelectric sensor according to the position arrangement of the specific electric energy meter to be detected.

Drawings

FIG. 1 is a rear view of a particular embodiment of a grid plant testing stand according to the present teachings;

fig. 2 is a schematic perspective view of a specific embodiment of a power grid equipment test stand according to the present disclosure;

FIG. 3 is a side view of one embodiment of a grid plant testing stand according to the present teachings;

fig. 4 is a schematic view of a partial structure of a position of a photoelectric test stand in a specific embodiment of a power grid equipment test stand according to the present disclosure.

The reference numerals in the above figures are respectively: 1. the device comprises a panel, 2, an interface board, 3, a line interface, 4, a vertical frame, 5, a device box, 6, a cross rod, 7, a side plate, 8, a chute, 9, a photoelectric test frame, 91, a sliding block, 92, a first rod body, 93, a spring, 94, a spring seat, 95, a first sleeve, 96, a second sleeve, 97, a locking piece, 98, a second rod body, 99, a signal line connector, 910, light blocking glass, 911, a sensor housing, 912, a sealing ring, 10, a photoelectric sensor, 11, a light source, 12 and a measured electric energy meter.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited to the following examples.

Example 1:

as shown in fig. 1 to 4, a power grid equipment test board comprises a panel 1, wherein a plurality of power grid equipment fixing stations and signal acquisition components, the number of which is matched with that of the power grid equipment fixing stations, are arranged on the panel 1, the power grid equipment fixing stations are used for fixing power grid equipment, the signal acquisition components are used for acquiring or transmitting signals from the power grid equipment, and a power grid equipment fixing module forming the power grid equipment fixing stations is arranged on the panel 1;

the power grid equipment fixing module comprises two cross bars 6 which are parallel to each other, and also comprises side plates 7, wherein the number of the side plates 7 is more than or equal to 3;

the side plates 7 are: one end of the sliding connection device is in sliding connection with one cross rod 6 through a groove body arranged at the bottom side of the end, and the other end of the sliding connection device is in sliding connection with the other cross rod 6 through a groove body arranged at the bottom side of the end, and the sliding connection is as follows: the side plates 7 are slidable relative to the cross bars 6 along the length direction of the cross bars 6, and the grid equipment fixing station is formed between two adjacent side plates 7;

The device also comprises a chute 8 fixed on the panel 1, wherein the chute 8 is parallel to the cross bar 6;

the signal acquisition component comprises an interface module and a photoelectric testing frame 9, the interface module is arranged on the panel 1, the photoelectric testing frame 9 comprises a frame body and a photoelectric sensor 10 fixed at the front end of the frame body, the rear end of the frame body is provided with a sliding block 91, the sliding block 91 is arranged in the sliding groove 8 and can slide along the length direction of the sliding groove 8, and the photoelectric sensor 10 is used for acquiring optical signals sent by a light source 11 on power grid equipment.

In the prior art, regarding electric energy meter testing, the patent application document with the application number of CN202310314370.1 provides a pipelined testing device, and the specific scheme is that a clamping device is arranged on a conveyor belt to position the electric energy meter, and the automatic detection of the electric energy meter is completed by combining with a detection device; the technical scheme provided by the patent application document with the application number of CN201510705303.8 is also an electric energy meter test scheme of a production line. However, with the richness of functions of the electric energy meter in the prior art, in order to realize electric energy input, related serial port signal test, ethernet communication test, wireless communication module test, and light source 11 feedback test, the electric energy meter 12 to be tested has more wired connections with the test system, and the increase of the tested items also increases the residence time of the electric energy meter at the fixed station, compared with the pipelining test realized by the conveyor belt, in the above aspects, the position-fixed power grid equipment test system has the characteristics that the wired connections are convenient, the residence time can effectively balance the relation between the system efficiency and the cost, so it is significant to the field to further develop the position-fixed power grid equipment test system.

In the power grid equipment test board provided by the scheme, specific power grid equipment can be an electric energy meter or other power grid equipment, such as an edge physical agent device integrating data acquisition and data processing.

Specifically, the panel 1 is used as the mesa of testboard, specifically is used for providing the support for the back of electric energy meter, can use to keep flat or slope setting, and when setting for the slope, panel 1's downside is as panel 1's front side, the fixed module of electric wire netting equipment is used for retraining the side of electric energy meter, specifically is through curb plate 7 and electric energy meter side contact restraint electric energy meter and panel 1's relative position, signal acquisition part is used for linking to each other with communication interface/module on the electric energy meter, sets up to including wired communication interface, wireless communication module as required, specifically is for matching one or more in RS485, RS232, the optical fiber interface for match wired Ethernet communication, be used for matching wireless communication such as loRa, bluetooth, 4G, 5G.

This scheme is a fixed test scheme in position, through setting up to including a plurality of electric wire netting equipment fixed stations and signal acquisition part for this scheme can be applied to simultaneously test a plurality of electric energy meter 12 being tested, compares in common pipeline test based on the conveyer belt, and such test mode is convenient for not only test system and each wired interface 3 of electric energy meter 12 being tested be connected, each wireless communication module of test system and the wireless communication module signal connection that electric energy meter 12 being tested corresponds of being convenient for, can effectively balance test system's efficiency and cost's relation simultaneously in the required time of test.

In this scheme, include a specific electric energy meter 12 constraint mode of being surveyed, specific: the utility model discloses a power grid equipment fixed station forms between two curb plates 7 that link to each other, adopts each curb plate 7 to be one of them horizontal pole 6 sliding connection, the mode of other end and another horizontal pole 6 sliding connection, can be according to specific measured electric energy meter 12 size, the specific position of each curb plate 7 on reasonable selection horizontal pole 6 length direction for this scheme has the characteristics that are applicable to different sizes measured electric energy meter 12.

In this scheme, can set up to all enclose into the fixed station of electric wire netting equipment between two arbitrary adjacent curb plates 7, also can be only be used for forming a fixed station of electric wire netting equipment for each curb plate 7, for example, from the one end of horizontal pole 6 to the other end, with curb plate 7 serial number 1#, 2#, 3#, 4#, all form the fixed station of electric wire netting equipment between 1# and 2#, 2# and 3#, 3# and 4#. All form the fixed station of electric wire netting equipment between the #, also can be 1# and 2#, 3# and 4#. The position of each electric energy meter 12 that is surveyed on panel 1 is disposed in a flexible way to this scheme, when testing electric energy meter batch, has the characteristics that do benefit to the miniaturized design of test system whole volume.

In this scheme, the interface module sets up to including wired interface 3 module (be used for matching one or several in RS485, RS232, the optic fibre interface) and wireless communication module (be used for matching wireless communication module such as loRa, bluetooth, 4G, 5G, etc.) simultaneously to still including photoelectric sensor 9 for this scheme can be used for being surveyed the light source 11 condition detection on the electric energy meter 12, and set up to accomplish photoelectric sensor 9's installation on panel 1 through spout 8 and slider 91, such mode is convenient for arrange according to the position of specific electric energy meter 12, adjusts photoelectric sensor 10's position.

The position fixing of the side plates 7 on the cross bar 6 can be realized through the friction force between the side plates 7 and the cross bar 6, and other auxiliary fixing devices can also be adopted; the fixing of the position of the slider 91 in the groove can be achieved by friction between each other, but also by other auxiliary fixing means.

Preferably, in order to improve the position adjustment efficiency of the side plate 7, a sliding bearing bush is further installed in the groove body, and the following is specifically applied: the concave side of the sliding bearing bush is contacted with the side surface of the cross rod 6, the convex side of the sliding bearing bush is contacted with a set screw which is in threaded connection with the side plate 7, and the positive pressure between the sliding bearing bush and the cross rod 6 is regulated by fastening or loosening the set screw, so that the proper friction force of the side plate 7 along the movement of the cross rod 6 is obtained, if the maximum static friction force between the side plate 7 and the cross rod 6 is insufficient to maintain the force required by the side plate 7 to restrain the side surface position of the electric energy meter 12 to be tested, the set screw is further screwed, the screwing degree is in order to push the side plate 7 to slide along the cross rod 6 by manual work, and in such a way, the positive pressure between the sliding bearing bush and the set screw can be reasonably regulated according to the sliding resistance of the side plate 7 on the cross rod 6. Furthermore, the elastic member arranged between the set screw and the side plate 7 and deformed by compression is adopted to realize the locking of the set screw, but the elastic deformation range of the elastic member should be suitable for the depth of embedding the set screw into the side plate 7.

Example 2:

this example was further refined on the basis of example 1:

the groove bodies are all: the maximum width position of cell body is located the inboard of cell body, and the appearance of horizontal pole 6 and the appearance looks adaptation of cell body, the looks adaptation is: the side plates 7 are prevented from moving relative to the cross bar 6 in the depth direction of the tank by the outer walls of the cross bar 6 acting against the side walls of the tank.

The above scheme provides a specific horizontal pole 6 and curb plate 7 connected mode, adopts this mode, and the connecting leg between horizontal pole 6 and the panel 1 can not influence the position adjustment of curb plate 7 on horizontal pole 6, accomplishes the cooperation with horizontal pole 6 after curb plate 7 passes through the tip of horizontal pole 6, can make the position coverage of curb plate 7 on horizontal pole 6 can cover the full length of horizontal pole 6. The groove body can be a dovetail groove with the maximum width position positioned at the inner side of the groove body and a circular groove with a non-complete annular section, for example, a regular circular groove with the chord length of the groove opening position smaller than the diameter of the circle is adopted, and the cross section shape of the cross bar 6 is consistent with the cross section shape of the groove body. The above cross-sectional shapes are consistent for increasing the contact area between the cross bar 6 and the side plate 7, and when the sliding bearing bush is arranged, the surface of the sliding bearing bush is used as the boundary of the groove body on the side plate 7, and the sliding resistance of the side plate 7 can be linearly adjusted by adopting the sliding bearing bush, so that the sliding bearing bush does not need to be arranged to have the same cross-sectional shape.

Example 3:

this example was further refined on the basis of example 1:

the interface module comprises an interface board 2 and a plurality of wiring ports arranged on the interface board 2, and the interface board 2 is detachably connected to the panel 1.

The above scheme is a specific implementation scheme of the interface module, and the implementation scheme is aimed at: according to specific needs, the interface board 2 with the wiring port suitable for testing is selected and replaced, so that the test bench has better universality. In specific application, the signal processing module for receiving the detection signal and processing the detection signal is connected with the line interface 3 through the expansion module, the expansion module adopts a CH348 chip, the line interface 3 comprises 4 paths of RS485 interfaces, 2 paths of RS232 interfaces and 2 paths of optical fiber interfaces, specifically, one path of USB is expanded into 8 paths of TTL interfaces through the CH348 chip, and then TTL is converted into RS485, RS232 and optical fibers. The above is to the common interface module configuration scheme of the wired interface 3 of the electric energy meter 12 to be tested, the wireless communication module can be set independently of the interface board 2, and the specific application is to configure the wireless communication module with the same number of fixed stations of the power grid equipment, and each wireless communication module comprises LoRa, bluetooth and 4G communication modules.

Example 4:

this example was further refined on the basis of example 3:

each interface board 2 is provided with a mounting hole positioned on the panel 1, and the relationship between the interface board 2 and the mounting hole arranged with the interface board is that: the front end of the wiring port is exposed to the front surface of the panel 1, and the rear end of the wiring port is exposed to the rear surface of the panel 1.

In the above scheme, the front end of wiring mouth is used for accomplishing the wiring mouth with the mode of grafting wiring and is connected with the electric energy meter 12 that is surveyed, and the rear end of wiring mouth is used for being connected with signal processing module with the mode of grafting wiring, adopts this scheme, aims at realizing: for any replaced interface board 2, the communication line between the wiring port and the signal processing module can be in hidden installation, which is beneficial to the simplicity and the neatness of the test bench panel 1.

Example 5:

this example was further refined on the basis of example 1:

still include the grudging post 4, the bottom side of grudging post 4 is provided with the device case 5, panel 1 slope is installed on grudging post 4, and the bottom side of panel 1 is located the place ahead of top side, and spout 8 is located the top of horizontal pole 6.

The scheme aims at realizing the following steps: the panel 1 is obliquely arranged, so that a power grid equipment fixing station is positioned in front of a tester, and wiring operation and observation operation are conveniently realized; by utilizing the characteristic that the chute 8 is positioned above the cross bar 6, the photoelectric sensor 10 positioned at the front end of the frame body maintains the relative position relation with the light source 11 on the electric energy meter 12 to be measured in a falling mode, namely, the photoelectric sensor 10 is positioned below the sliding block 91, and the photoelectric sensor 10 is more easily maintained to a specific position relative to the mode that the photoelectric sensor 10 is positioned above the sliding block 91; the device box 5 is used for matching other devices of the test system which do not need to be frequently operated, such as a host computer of a three-phase alternating current/direct current calibrator, a main body of a power supply system in the test system, a main body of a signal processing module in the test system and the like, reduces the frequency or amplitude of bending operation of an operator through reasonable functional partition configuration, and is convenient for carrying out reasonable counterweight on a test bench. The panel 1 is configured to form an included angle of 78-85 degrees with a horizontal plane, the electric energy meter 12 is specifically applied to the fact that the lower side face of the electric energy meter 12 to be tested is supported on the cross rod 6 below, the side faces of the two sides are respectively restrained by the side faces of the side plates 7, the back face of the electric energy meter is supported on the panel 1, the heights of a power grid equipment fixing station and the bottom of the test bench are 40-160 cm, and the preferable mode is that: the power grid equipment fixing modules are provided with two groups or more, the power grid equipment fixing modules are sequentially arranged on the panel 1 along the height direction, each cross rod 6 is a horizontal rod, during specific operation, the operator can complete relevant test operation by adopting the squatting posture when aiming at the power grid equipment fixing module with lower height, such as the power grid equipment fixing module with lower height is lower than 1m, and the operator can complete relevant test operation by adopting the standing posture when aiming at the power grid equipment fixing module with higher height, such as the power grid equipment fixing module with higher height is lower than 1 m.

Example 6:

this example was further refined on the basis of example 1:

the shape of the frame body is adjustable, and by adjusting the shape of the frame body, the height of the photoelectric sensor 10 relative to the panel 1 can be changed, and the position of the photoelectric sensor 10 in the spacing direction of the cross bars 6 can be changed.

The scheme aims at realizing the following steps: after the position of the slider 91 in the chute 8 is fixed, the specific position of the photoelectric sensor 10 can be changed by adjusting the shape of the frame body, the position includes the height described above, the height is used for matching the thickness of the electric energy meter 12 to be tested, the position includes the position in the distance direction of the cross rod 6 described above, the position is used for matching the specific setting position of the light source 11 on the electric energy meter 12 to be tested, that is, the technical scheme that the light source 11 test of different electric energy meters can be matched through the frame body shape adjustment is provided. In a specific application, on the surface of the electric energy meter 12 to be measured, the common light source 11 includes a light-emitting lamp located on the surface layer of the electric energy meter 12 to be measured, and also includes a light guide column structure with an end located on the surface of the electric energy meter 12 to be measured.

Example 7:

this example was further refined on the basis of example 6:

the frame body comprises a first rod body 92, a spring 93, a first sleeve 95, a second sleeve 96 and a second rod body 98;

One end of the first rod 92 is fixedly connected with the sliding block 91, a first sleeve 95 is sleeved at the other end of the first rod 92, the first sleeve 95 can slide relative to the first rod 92 in the length direction of the first rod 92, one end of the spring 93 is fixedly connected with the first rod 92, and the other end of the spring 93 is fixedly connected with the first sleeve 95;

the second sleeve 96 is fixedly connected with the first sleeve 95, and the second rod body 98 is arranged on the second sleeve 96 and has adjustable extension length relative to the second sleeve 96;

the photoelectric sensor 10 is fixed to the end of the second rod 98;

by the first sleeve 95 sliding in the length direction of the first rod 92 with respect to the first rod 92, the height of the photoelectric sensor 10 with respect to the panel 1 is changed;

by adjusting the extension length, the position of the photoelectric sensor 10 in the pitch direction of the cross bars 6 is changed;

the second sleeve 96 is rotatable about the axis of the first rod 92.

The above scheme provides a specific support body form, and specifically, first body of rod 92 forms the connector of adjustable length with first sleeve pipe 95 to through spring 93, when the back is surveyed electric energy meter 12 to the centre gripping between panel 1 and photoelectric sensor 10, spring 93 takes place elastic elongation, and the restoring force of spring 93 makes photoelectric sensor 10's optical signal acquisition end can hug closely with surveyed electric energy meter 12, thereby reduces because light source 11 light leak, external environment light to the influence that test result produced. The first rod 92 slides along the sliding groove 8 under the action of the sliding block 91 for matching the general position of the frame body relative to the electric energy meter 12 to be measured, and the specific position adjustment of the photoelectric sensor 10 relative to the light source 11 is realized by adjusting the extension length of the second rod 98 relative to the second sleeve 96 and rotating the second sleeve 96 around the first rod 92. Compared with the rotation of the first sleeve 95 around the axis of the first rod 92 relative to the first rod 92, in order to avoid the spring 93 being twisted, the torsional restoring force of the spring 93 has an adverse effect on the positioning accuracy of the photoelectric sensor 10, or to avoid providing the spring 93 with a relatively complex anti-twisting structure, such as providing a spring seat 94 capable of rotating relative to the first sleeve 95, the rotation of the second sleeve 96 around the first rod 92 is preferably realized by adopting the damping rotation of the sliding block 91 around the axis of the first rod 92 in the sliding groove 8, specifically by providing the damping through the friction force between the sliding block 91 and the sliding groove 8, the preferred application is that the side surface of the sliding block 91 is wrapped with a rubber sleeve positioned outside the sliding block 91, and the rubber sleeve is extruded by the groove wall of the sliding groove 8 to generate the required rotation damping. It is easy to understand that the distance direction of the cross bars 6 is the distance direction of two cross bars 6 in the power grid equipment fixing module, in the application that the panel 1 is obliquely arranged and the chute 8 is located above the cross bars 6, in order to avoid that the second rod body 98 cannot maintain the required extension length due to the dead weight of the structure, the extension length can be configured to include a locking piece 97 disposed on the second sleeve 96, the locking piece 97 is used to provide constraint for extending the second rod body 98 relative to the second sleeve 96, so as to achieve the purpose of controlling the extension length of the second rod body 98, and the locking piece 97 can use a locking screw and is further configured to: the second rod body 98 is a rod-shaped structure with a plane on the side surface, the hole channel on the second sleeve 96 for installing the second rod body 98 is a hole structure with a plane on one side, the second rod body 98 is prevented from rotating relative to the second sleeve 96 by the plane, the plane on the second rod body 98 is used as the contact surface of the second rod body with the locking piece 97, in order to improve the matching precision of the second rod body 98 and the second sleeve 96, the second sleeve 96 is provided with a multi-section structure, the hole structure is processed on only one section of the second sleeve 96, the hole structure is used for forming high-precision matching with the second rod body 98, other sections are used for realizing connection of the second sleeve 96 and the first sleeve 95, the length of the second sleeve 96 is increased so as to facilitate a user to lift the photoelectric sensor 10, and the height of the photoelectric sensor 10 relative to the panel 1 is adjusted.

When in specific use, the method is set as follows: the first rod 92 and the first sleeve 95 are both perpendicular to the panel 1, and a spiral spring 93 is adopted, the spring 93 is coaxial with the first rod 92, the second sleeve 96 is parallel to the second rod 98 and parallel to the panel 1, and the light signal acquisition end of the photoelectric sensor 10 is aligned to the panel 1.

Example 8:

this example was further refined on the basis of example 1:

the optical signal collection end of the photoelectric sensor 10 is provided with a sealing ring 912, the sealing ring 912 is an elastic ring for blocking light, and a pore canal on the inner side of the sealing ring 912 is used as a light hole during optical signal collection.

In the above scheme, the seal ring 912 which is an elastic ring is matched with the spring 93, and the gap between the photoelectric sensor 10 and the wall surface of the electric energy meter 12 to be measured is reduced through the effect of the elastic restoring force of the seal ring 912 on the spring 93, so that the light leakage of the light source 11 and the influence of external environment light on the acquisition precision of the light signal are further optimized, and the method is particularly suitable for scenes with high requirements on the acquisition precision of the light intensity of the light source 11. In a specific application, the light emitted by the light source 11 enters the optical signal collection end of the photoelectric sensor 10 through the light hole. In a specific application, in order to achieve the purpose of blocking light, the sealing ring 912 is a rubber ring that is opaque, and the color of the sealing ring 912 is further set to be consistent with the color of the light emitted by the light source 11, so as to avoid interference of the sealing ring 912 with the color detection of the light of the photoelectric sensor 10.

Example 9:

this example was further refined on the basis of example 8:

the photoelectric sensor 10 includes a sensor housing 911 and a sensor provided inside the sensor housing 911;

the sensor housing 911 is a light-blocking cylinder structure;

the end of the sensor housing 911, which is close to the panel 1, is an acquisition end for acquiring the optical signal of the light source 11, and a sealing ring 912 coaxial with the sensor housing 911 is arranged on the acquisition end;

the end of the sensor housing 911 away from the panel 1 is mounted with a light-blocking glass 910 for blocking the end, and the light-blocking glass 910 is used for reducing the interference of the light outside the sensor housing 911 on the intensity of the light inside the sensor housing 911, and the light-blocking glass 910 is used as a light-transmitting component for observing the condition of the light inside the sensor housing 911 from the outside of the sensor housing 911.

In the prior art, the photoelectric sensor 10 is generally provided with an optical signal acquisition end only at one side, and other directions except the optical signal acquisition end are not light-transmitting. Specifically, the sensor is a component with a photoelectric effect in the photoelectric sensor 10, the sensor housing 911 is used as a packaging component of the sensor, a bearing component of the signal line connector 99 on the photoelectric sensor 10, and a connecting component with the second rod body 98, and adopts a light blocking cylinder structure, so as to avoid light leakage of light emitted by the light source 11 and influence of external ambient light on light in an inner space. The light blocking glass 910 is further configured to further include the light blocking glass 910, where the light blocking glass 910 is configured to reduce or avoid interference of external ambient light on light inside the sensor housing 911, and specifically may be unidirectional glass or dark glass or coated glass, and when a light signal inside the sensor housing 911 needs to be observed, if external ambient light is stronger, a simple light shielding structure for shielding external ambient light from the light blocking glass 910 may be formed by using a palm grip ring to observe a flicker condition or a brightness condition of the light source 11.

Example 10:

the embodiment provides a power grid equipment testing system based on embodiment 1, which comprises a testing table and a testing device, wherein the testing table is the power grid equipment testing table in embodiment 1, the testing device comprises a signal processing module, and the signal acquisition component and the photoelectric sensor 10 are both connected with a signal input end of the signal processing module. The system is a specific application of the test bench.

The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to these descriptions. Other embodiments of the invention, which are apparent to those skilled in the art to which the invention pertains without departing from its technical scope, shall be covered by the protection scope of the invention.

Claims (10)

1. The utility model provides a power grid equipment testboard, includes panel (1), be provided with a plurality of power grid equipment fixed stations and the signal acquisition part that quantity and power grid equipment fixed station match on panel (1), power grid equipment fixed station is used for fixed power grid equipment, signal acquisition part is used for gathering or transmitting the signal from power grid equipment, characterized in that, be provided with the power grid equipment fixed module that forms the fixed station of power grid equipment on panel (1);

The power grid equipment fixing module comprises two cross bars (6) which are parallel to each other and side plates (7), wherein the number of the side plates (7) is more than or equal to 3;

the side plates (7) are respectively: one end of the sliding connection device is in sliding connection with one cross rod (6) through a groove body arranged at the bottom side of the end, and the other end of the sliding connection device is in sliding connection with the other cross rod (6) through a groove body arranged at the bottom side of the end, and the sliding connection is as follows: the side plates (7) can slide relative to the cross bars (6) along the length direction of the cross bars (6), and the grid equipment fixing station is formed between two adjacent side plates (7);

the device also comprises a chute (8) fixed on the panel (1), wherein the chute (8) is parallel to the cross bar (6);

the signal acquisition component comprises an interface module and a photoelectric testing frame (9), the interface module is arranged on the panel (1), the photoelectric testing frame (9) comprises a frame body and a photoelectric sensor (10) fixed at the front end of the frame body, the rear end of the frame body is provided with a sliding block (91), the sliding block (91) is arranged in a sliding groove (8) and can slide along the length direction of the sliding groove (8), and the photoelectric sensor (10) is used for acquiring optical signals sent by a light source (11) on power grid equipment.

2. The grid equipment test stand of claim 1, wherein the tanks are: the maximum width position of the groove body is positioned at the inner side of the groove body, the appearance of the cross bar (6) is matched with the appearance of the groove body, and the matching is as follows: the side plates (7) are prevented from moving along the depth direction of the tank body relative to the cross bars (6) by the action of the outer walls of the cross bars (6) and the side walls of the tank body.

3. A power grid equipment test stand according to claim 1, characterized in that the interface module comprises an interface board (2) and a plurality of wiring ports (3) arranged on the interface board (2), the interface board (2) being detachably connected to the panel (1).

4. A grid plant testing stand according to claim 3, characterized in that each interface board (2) is provided with mounting holes on the panel (1), the interface board (2) and the mounting holes arranged therewith being in relation to: the front end of the wiring port (3) is exposed to the front surface of the panel (1), and the rear end of the wiring port (3) is exposed to the rear surface of the panel (1).

5. The power grid equipment test stand according to claim 1, further comprising a stand (4), wherein a device box (5) is arranged at the bottom side of the stand (4), the panel (1) is obliquely arranged on the stand (4), the bottom side of the panel (1) is positioned in front of the top side, and the chute (8) is positioned above the cross bar (6).

6. The grid equipment test stand according to claim 1, characterized in that the shape of the frame body is adjustable, and by adjusting the shape of the frame body, the height of the photoelectric sensor (10) relative to the panel (1) can be changed, and the position of the photoelectric sensor (10) in the distance direction of the cross bars (6) can be changed.

7. The grid equipment test stand of claim 6, wherein the frame comprises a first rod (92), a spring (93), a first sleeve (95), a second sleeve (96), and a second rod (98);

one end of the first rod body (92) is fixedly connected with the sliding block (91), a first sleeve (95) is sleeved at the other end of the first rod body (92), the first sleeve (95) can slide relative to the first rod body (92) in the length direction of the first rod body (92), one end of the spring (93) is fixedly connected with the first rod body (92), and the other end of the spring is fixedly connected with the first sleeve (95);

the second sleeve (96) is fixedly connected with the first sleeve (95), and the second rod body (98) is arranged on the second sleeve (96) and has adjustable extension length relative to the second sleeve (96);

the photoelectric sensor (10) is fixed at the end part of the second rod body (98);

By sliding the first sleeve (95) relative to the first rod body (92) in the length direction of the first rod body (92), the height of the photoelectric sensor (10) relative to the panel (1) is changed;

changing the position of the photoelectric sensor (10) in the spacing direction of the cross bars (6) by adjusting the extension length;

the second sleeve (96) is rotatable about the axis of the first rod (92).

8. The power grid equipment test board according to claim 1, wherein a sealing ring (912) is arranged on the optical signal collection end of the photoelectric sensor (10), the sealing ring (912) is an elastic ring for blocking light, and a pore channel on the inner side of the sealing ring (912) is used as a light hole during optical signal collection.

9. A grid plant testing stand according to claim 8, characterized in that the photoelectric sensor (10) comprises a sensor housing (911) and a sensor arranged inside the sensor housing (911);

the sensor shell (911) is of a light-blocking cylinder structure;

one end of the sensor shell (911) close to the panel (1) is an acquisition end for acquiring the optical signals of the light source (11), and a sealing ring (912) coaxial with the sensor shell (911) is arranged on the acquisition end;

A light blocking glass (910) for blocking the end is arranged on one end of the sensor housing (911) far away from the panel (1), the light blocking glass (910) is used for reducing interference of light outside the sensor housing (911) on the light intensity inside the sensor housing (911), and the light blocking glass (910) is used as a light transmission part for observing the light condition inside the sensor housing (911) from the outside of the sensor housing (911).

10. A power grid equipment test system comprising a test bench and a test device, wherein the test bench is a power grid equipment test bench according to any one of claims 1 to 9, the test device comprises a signal processing module, and the signal acquisition component and the photoelectric sensor (10) are both connected with a signal input end of the signal processing module.