Debugging device of metering device and use method thereof

Abstract

The invention belongs to the technical field of equipment debugging, and particularly relates to a debugging device of a metering instrument and a using method thereof, and the debugging device comprises a handheld device scanning module which is used for carrying out infrared scanning on the metering instrument and realizing data intercommunication including instrument debugging; the metering instrument clamping module comprises an acquisition terminal clamping mechanism, a three-phase intelligent meter clamping mechanism and a single-phase intelligent meter clamping mechanism, and is used for fixing different types of metering instruments and providing power connection; and the power supply module is used for providing power supply control for the metering instrument clamping module. The integrated metering instrument clamping module is arranged, and the clamping assembly is matched with a linkage mechanism of the pressing handle, the connecting rod, the push rod and the instrument pressing block, so that plug-and-play and rapid pressing and fixing of the instrument to be debugged are realized, a traditional flexible wire wiring mode is thoroughly abandoned, and the wiring time is greatly shortened.

Description

A calibration device for a metering instrument and its usage method Technical Field

[0001] This invention belongs to the field of equipment debugging technology, specifically relating to a debugging device for a metering instrument and its usage method. Background Technology

[0002] In existing technologies, the parameter setting and data communication debugging of low-voltage concentrators, load control terminals, and various smart energy meters (such as single-phase, three-phase four-wire, and high-voltage three-phase three-wire meters) in power systems generally rely on manual operation, which leads to problems such as low efficiency, inconvenience, and safety hazards. Technicians typically need to use flexible wires to connect each instrument to be debugged one by one, a tedious and time-consuming process. According to statistics, the wiring process accounts for more than 55% of the entire debugging time. At the same time, when using handheld infrared devices to read or set instrument parameters, the need for manual alignment makes them prone to shaking, causing infrared communication failures and frequent retries, further extending the operation time. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, the present invention provides a debugging device for a metering instrument and a method for using the same.

[0004] In a first aspect, the present invention provides a debugging device for metering instruments, comprising: a handheld scanning module for performing infrared scanning on the metering instruments to achieve data communication including instrument debugging; a metering instrument connection module, including a data acquisition terminal connection mechanism, a three-phase smart meter connection mechanism and a single-phase smart meter connection mechanism, for fixing different types of metering instruments and providing power connection; and a power supply module for providing power control for the metering instrument connection module.

[0005] Further improvements to this technical solution include a handheld scanning module comprising a handheld terminal and a terminal mounting component for mounting the handheld terminal. The terminal mounting component comprises a first slide rail fixed on a debugging platform, a first slider slidably connected to the first slide rail, a fixed bracket vertically mounted at the end of the first slider away from the first slide rail, a first telescopic bracket hinged at the end of the fixed bracket away from the first slider, a second telescopic bracket vertically mounted at the end of the first telescopic bracket away from the fixed bracket, and a handheld terminal clamp at the end of the second telescopic bracket away from the first telescopic bracket.

[0006] Further improvements to this technical solution include: the metering instrument snap-on module is installed on the debugging platform on one side of the first slide rail; the acquisition terminal snap-on mechanism, the three-phase smart meter snap-on mechanism, and the single-phase smart meter snap-on mechanism all include snap-on components; the snap-on components are fixedly installed on the debugging platform on the side away from the first slide rail; each snap-on component corresponds to two mounting slots; the space between the two mounting slots is used to place the corresponding metering instrument to be debugged and the debugging component; the end of the mounting slot away from the snap-on component is fixedly installed with the corresponding debugging component interface or the metering instrument interface to be debugged; the debugging component interface and the metering instrument interface to be debugged can communicate via 485.

[0007] Further improvements to this technical solution include a snap-fit ​​assembly comprising a base fixed to a debugging platform, a connecting block fixed on the base, a pressing handle hinged to the connecting block, and a connecting rod hinged to the pressing handle; a sliding cavity is provided inside the base, and a push rod arranged perpendicularly to the first slide rail is provided inside the sliding cavity, extending to the outside of the base; one end of the push rod inside the sliding cavity is hinged to the end of the connecting rod away from the pressing handle, and a pressure gauge block is fixed to one end of the push rod outside the base. Further improvements to this technical solution include a power supply module comprising a main circuit, a control circuit, and a backup control circuit, used to provide power control for the data acquisition terminal snap-fit ​​mechanism, the three-phase smart meter snap-fit ​​mechanism, and the single-phase smart meter snap-fit ​​mechanism.

[0008] Further improvements to this technical solution include a control circuit comprising an air switch QF1, a rotary switch SA1, intermediate relays KA1, KA2, and KA3, contactors KM1, KM2, and KM3, an emergency stop switch SB1, start switches SB2, SB3, and SB4, and indicator lights HL1, HL2, and HL3. The first terminal of the rotary switch SA1 is connected to the three-phase power supply via the air switch QF1. The second terminal of the rotary switch SA1 is connected to the first terminals of the coils of intermediate relays KA1, KA2, and KA3, as well as the first terminals of the normally open switches of intermediate relays KA1, KA2, and KA3. The second terminals of the coils of intermediate relays KA1, KA2, and KA3 are all connected to the neutral wire of the three-phase power supply. The second terminal of the normally open switch of intermediate relay KA1 is connected to the first terminal of the coil of contactor KM1 and the first terminal of indicator light HL1. The second terminal of the normally open switch KA2 is connected to the first terminal of the coil of contactor KM2 and the first terminal of indicator light HL2. The second terminal of the normally open switch of intermediate relay KA3 is connected to the first terminal of the coil of contactor KM3 and the first terminal of indicator light HL3. The second terminals of the coils of contactor KM1, indicator light HL1, contactor KM2, indicator light HL2, contactor KM3, and indicator light HL3 are all connected to the neutral wire of the three-phase power supply. The first terminals of start switches SB2, SB3, and SB4 are all connected to the third terminal of rotary switch SA1 through emergency stop switch SB1. The second terminal of start switch SB2 is connected to the first terminal of the coil of contactor KM1. The normally open switch of contactor KM1 is connected in parallel across start switch SB2. The second terminal of start switch SB3 is connected to the first terminal of the coil of contactor KM2. The normally open switch of contactor KM2 is connected in parallel across start switch SB3. The second terminal of start switch SB4 is connected to the first terminal of the coil of contactor KM3. The normally open switch of contactor KM3 is connected in parallel across start switch SB4.

[0009] Further improvements to this technical solution include: the main circuit includes an air switch QF2; the first end of the main contact of contactor KM1 is connected to the three-phase power supply via air switch QF2; the second end of the main contact of contactor KM1 is connected to the acquisition terminal card mechanism; the first end of the main contact of contactor KM2 is connected to the three-phase power supply via air switch QF2; the second end of the main contact of contactor KM2 is connected to the three-phase smart meter card mechanism; the first end of the main contact of contactor KM3 is connected to the three-phase power supply via air switch QF2; and the second end of the main contact of contactor KM3 is connected to the single-phase smart meter card mechanism.

[0010] Further improvements to this technical solution include a backup control circuit comprising an air switch QF3, an emergency stop switch SB5, a start switch SB6, a start switch SB7, contactors KM4 and KM5, and indicator lights HL4 and HL5. The first terminal of the emergency stop switch SB5 is connected to the three-phase power supply via the air switch QF3. The first terminals of both normally closed contactors KM1 and KM2 are connected to the second terminal of the emergency stop switch SB5. The second terminal of the normally closed contactor KM1 is connected to the first terminal of the contactor KM4 coil and the first terminal of indicator light HL4 via the start switch SB6. The second terminal of the normally closed contactor KM2 is connected to the contactor KM5 coil via the start switch SB7. The first terminal of the contactor and the first terminal of the indicator light HL5, the second terminal of the contactor KM4 coil, the second terminal of the indicator light HL4, the second terminal of the contactor KM5 coil, and the second terminal of the indicator light HL5 are all connected to the neutral wire of the three-phase power supply. The first terminal of the normally open switch of contactor KM4 and the first terminal of the normally open switch of contactor KM5 are both connected to the second terminal of the emergency stop switch SB5. The second terminal of the normally open switch of contactor KM4 is connected to the first terminal of the contactor KM4 coil, and the second terminal of the normally open switch of contactor KM5 is connected to the first terminal of the contactor KM5 coil. The acquisition terminal carding mechanism is connected to the three-phase power supply through the main contacts of contactor KM4, and the three-phase smart meter carding mechanism is connected to the three-phase power supply through the main contacts of contactor KM5.

[0011] Secondly, the present invention provides a method for using the metering instrument debugging device described in any of the above claims, comprising: S1, installing the metering instrument to be debugged and the debugging component into the corresponding mounting slots in the metering instrument snap-fit ​​module; S2, operating the pressing handle in the snap-fit ​​assembly to drive the push rod and the pressure block through the connecting rod, pressing and fixing the metering instrument to be debugged and the debugging component onto the corresponding interface; S3, powering the metering instrument snap-fit ​​module through the power supply module, so that the metering instrument to be debugged and the debugging component are powered on and a 485 communication connection is established; S4, adjusting the first telescopic bracket and the second telescopic bracket in the handheld scanning module so that the handheld terminal is aligned with the infrared communication port of the metering instrument to be debugged; S5, sliding the first slider along the first slide rail to move the handheld terminal to the target position, and using the handheld terminal to perform infrared scanning on the metering instrument to achieve data communication and parameter debugging; S6, after debugging is completed, cutting off the power supply to the power supply module, releasing the pressing handle, and taking out the metering instrument to be debugged and the debugging component.

[0012] The beneficial effects of this invention are as follows: By setting up an integrated metering instrument snap-on module, and using a snap-on component in conjunction with a linkage mechanism of a pressure handle, connecting rod, push rod, and pressure block, this invention achieves plug-and-play functionality and rapid clamping and fixing of the instrument to be debugged, completely eliminating the traditional soft wire wiring method and significantly shortening wiring time. Combined with a handheld scanning module consisting of a slide rail and a multi-stage telescopic bracket, it can stably and accurately perform continuous infrared scanning of multiple instruments, solving the communication failure problem caused by unstable manual handheld operation and significantly improving work efficiency.

[0013] The handheld scanning module adopts a combination structure of a first slide rail, a first slider, a fixed bracket, and a multi-level telescopic bracket, which makes the position of the handheld terminal adjustable and firmly fixed, effectively avoiding shaking during the scanning process, ensuring a high success rate of infrared data acquisition, and guaranteeing the reliability of the debugging process and the accuracy of the data.

[0014] The power supply module ensures the personal safety of operators through multiple protection mechanisms, including air switches, emergency stop switches, and contactor interlocks (KM1 and KM4, KM2 and KM5).

[0015] The device integrates a card-connecting mechanism for single-phase and three-phase smart meters and data acquisition terminals. It can simultaneously or separately perform power-on tests, 485 communication tests, and infrared parameter settings on various types of metering instruments with different voltage levels (by switching between the main circuit and the backup control circuit). It has comprehensive functions, a wide range of applications, and meets diverse on-site debugging needs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is a schematic diagram of the debugging device.

[0018] Figure 2 is a schematic diagram of the snap-fit ​​assembly.

[0019] Figure 3 is a schematic diagram of the interface structure.

[0020] Figure 4 is a circuit diagram of the control loop.

[0021] Figure 5 shows the circuit diagram of the backup control loop.

[0022] Figure 6 is a schematic flowchart of a method according to an embodiment of the present invention.

[0023] 111 is a handheld terminal, 112 is the first slide rail, 113 is the first slider, 114 is a fixed bracket, 115 is the first telescopic bracket, 116 is the second telescopic bracket, 117 is a handheld terminal clamp, 1211 is a base, 1212 is a connecting block, 1213 is a pressing handle, 1214 is a connecting rod, 1215 is a push rod, 1216 is a pressure gauge block, 122 is a mounting groove, 123 is an interface, 1231 is a telescopic needle, 130 is a power supply module, and 200 is a debugging platform. Detailed Implementation

[0024] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] As shown in Figure 1, the present invention provides a debugging device for metering instruments, comprising: a handheld scanning module for performing infrared scanning on the metering instruments to achieve data communication including instrument debugging; a metering instrument card-connecting module, including a data acquisition terminal card-connecting mechanism, a three-phase smart meter card-connecting mechanism and a single-phase smart meter card-connecting mechanism, for fixing different types of metering instruments and providing power connection; and a power supply module 130 for providing power control for the metering instrument card-connecting module.

[0027] This metering instrument debugging device uses the debugging platform 200 as its basic carrier (made of 304 stainless steel, with rust resistance and load-bearing capacity). Each module is installed according to its function: Handheld scanning module: installed at the top of the debugging platform 200, arranged along the length of the platform, covering all metering instrument connection stations on the platform; Metering instrument connection module: installed on the debugging platform 200 below the handheld scanning module, located below the first slide rail 112 of the handheld scanning module, with 3 sets of connection mechanisms (data acquisition terminal, three-phase smart meter, and single-phase smart meter) arranged side by side along the length of the platform; Power supply module 130: integrated at the bottom of the debugging platform 200, with components of the main circuit, control circuit, and backup control circuit installed via guide rails, and each terminal marked with a number for easy maintenance.

[0028] Specifically, the handheld scanning module includes a handheld terminal 111 and a terminal mounting assembly for mounting the handheld terminal 111. The terminal mounting assembly includes a first slide rail 112 fixed on the debugging platform 200. A first slider 113 is provided on the first slide rail 112 and slidably connected to the first slide rail 112. A fixed bracket 114 is vertically mounted on the end of the first slider 113 away from the first slide rail 112. A first telescopic bracket 115 is hinged to the end of the fixed bracket 114 away from the first slider 113. A second telescopic bracket 116 is vertically mounted on the end of the first telescopic bracket 115 away from the fixed bracket 114. A handheld terminal clamp 117 is provided on the end of the second telescopic bracket 116 away from the first telescopic bracket 115.

[0029] The first slide rail 112 is a linear slide rail of model SBR16, which is rigidly fixed to the aluminum alloy crossbeam at the top of the debugging platform 200 by M6 expansion bolts; a slider (model SBR16UU-L) with locking bolts is installed at each end of the slide rail. Tightening the bolts can lock the slider and prevent it from sliding during debugging.

[0030] First slider 113 and fixed bracket 114: The first slider 113 (matching model with the slide rail) is slidably sleeved on the first slide rail 112. An L-shaped aluminum alloy fixed bracket 114 is welded to the top of the slider. The fixed bracket 114 is perpendicular to the slider to ensure the stability of the bracket.

[0031] Telescopic bracket and handheld terminal clamp 117: The top of the fixed bracket 114 is hinged to the first telescopic bracket 115 (which adopts a multi-section aluminum alloy telescopic rod); the end of the first telescopic bracket 115 away from the fixed bracket 114 is vertically installed with the second telescopic bracket 116 (the structure is the same as the first telescopic bracket 115, and the direction is perpendicular to the first telescopic bracket 115), realizing bidirectional telescopic extension of "front and back + all"; the end of the second telescopic bracket 116 is fixed with a plastic handheld terminal clamp 117 (with an inner rubber anti-slip pad, suitable for mainstream 6-10 inch infrared handheld consoles on the market) by bolts, and the clamp has elastic buckles on both sides to clamp the handheld console to prevent it from falling.

[0032] As shown in Figures 2 and 3, the metering instrument snap-on module is installed on the debugging platform 200 on one side of the first slide rail 112. The acquisition terminal snap-on mechanism, the three-phase smart meter snap-on mechanism, and the single-phase smart meter snap-on mechanism all include snap-on components. On the debugging platform 200 on the side of the snap-on component away from the first slide rail 112, there are fixed mounting slots 122. Each snap-on component corresponds to two mounting slots 122. The space between the two mounting slots 122 is used to place the corresponding metering instrument to be debugged and the debugging component. The end of the mounting slot 122 away from the snap-on component is fixedly installed with the corresponding debugging component interface 123 or the metering instrument interface 123 to be debugged. The debugging component interface 123 and the metering instrument interface 123 to be debugged can communicate via 485.

[0033] As shown in Figures 1 and 2, the snap-fit ​​assembly includes a base 1211 fixed on the debugging platform 200, a connecting block 1212 fixed on the base 1211, a pressing handle 1213 hinged to the connecting block 1212, and a connecting rod 1214 hinged to the pressing handle 1213. A sliding cavity is provided inside the base 1211, and a push rod 1215 arranged perpendicularly to the first slide rail 112 is provided in the sliding cavity. The push rod 1215 extends to the outside of the base 1211. One end of the push rod 1215 in the sliding cavity is hinged to the end of the connecting rod 1214 away from the pressing handle 1213. A pressure gauge block 1216 is fixed to one end of the push rod 1215 on the outside of the base 1211. Each set of snap-fit ​​mechanisms corresponds to two U-shaped mounting grooves 122 (PVC material), which are fixed to the debugging platform 200 with M4 screws; the groove spacing matches the width of the corresponding metering instrument (for example, the groove spacing of the data acquisition terminal is 120mm, the groove spacing of the three-phase smart meter is 80mm, and the groove spacing of the single-phase smart meter is 60mm). The inside of the groove is pasted with velvet to avoid scratching the instrument shell.

[0034] The end of the mounting slot 122 furthest from the snap-fit ​​assembly is fixed with screws to the corresponding interface 123: the terminal debugging interface 123 for the acquisition terminal (including power terminals and 485 communication terminals), the three-phase smart meter interface 123 for the three-phase smart meter (including 380V power terminals and 485 terminals), and the single-phase smart meter interface 123 for the single-phase smart meter (including 220V power terminals and 485 terminals). Each interface 123 terminal is marked with L / N / 485A / 485B. The interface 123 board and the telescopic pin 1231 of the snap-fit ​​assembly are connected by an RVV2×1.0mm² wire to ensure stable transmission of power and communication signals.

[0035] The base 1211 is made of cast iron and is fixed to the debugging platform 200 by expansion screws. A rectangular sliding cavity is opened inside the base 1211, and the inner wall of the sliding cavity is polished to reduce the sliding resistance of the push rod 1215. The pressing handle 1213 is a Z-shaped or L-shaped metal rod, which is hinged to the connecting block 1212 on the base 1211 by a pin in the middle. The connecting rod 1214 is a metal rod, one end of which is hinged to the corner of the L-shaped pressing handle 1213 by a pin, and the other end extends into the sliding cavity and is hinged to the push rod 1215, forming a linkage mechanism of handle-connecting rod 1214-push rod 1215. The push rod 1215 is a stainless steel rod, with one end extending into the sliding cavity and hinged to the connecting rod 1214, and the other end extending out of the base 1211. The pressure block 1216 is made of rubber and is fixed to the protruding end of the push rod 1215 by screws. The side of the pressure block 1216 facing the instrument has an arc shape to match the curvature of the instrument housing, ensuring that the instrument is not damaged when pressed.

[0036] As shown in Figures 4 and 5, the power supply module 130 includes a main circuit, a control circuit, and a backup control circuit, which are used to provide power control for the acquisition terminal card connection mechanism, the three-phase smart meter card connection mechanism, and the single-phase smart meter card connection mechanism.

[0037] Furthermore, the control circuit includes an air switch QF1, a rotary switch SA1, intermediate relays KA1, KA2, and KA3, contactors KM1, KM2, and KM3, an emergency stop switch SB1, start switches SB2, SB3, and SB4, and indicator lights HL1, HL2, and HL3. The first terminal of the rotary switch SA1 is connected to the three-phase power supply via the air switch QF1. The second terminal of the rotary switch SA1 is connected to the first terminals of the coils of intermediate relays KA1, KA2, and KA3, as well as the first terminals of the normally open switches of intermediate relays KA1, KA2, and KA3. The second terminals of the coils of intermediate relays KA1, KA2, and KA3 are all connected to the neutral wire of the three-phase power supply. The second terminal of the normally open switch of intermediate relay KA1 is connected to the first terminal of the coil of contactor KM1 and the first terminal of indicator light HL1. The normally open switch of intermediate relay KA2... The second terminal of the switch is connected to the first terminal of the contactor KM2 coil and the first terminal of the indicator light HL2. The second terminal of the normally open switch of the intermediate relay KA3 is connected to the first terminal of the contactor KM3 coil and the first terminal of the indicator light HL3. The second terminals of the contactor KM1 coil, the indicator light HL1, the contactor KM2 coil, the indicator light HL2, the contactor KM3 coil, and the indicator light HL3 are all connected to the neutral wire of the three-phase power supply. The first terminals of the start switch SB2, the start switch SB3, and the start switch SB4 are all connected to the third terminal of the rotary switch SA1 through the emergency stop switch SB1. The second terminal of the start switch SB2 is connected to the first terminal of the contactor KM1 coil. The normally open switch of contactor KM1 is connected in parallel across the two terminals of the start switch SB2. The second terminal of the start switch SB3 is connected to the first terminal of the contactor KM2 coil. The normally open switch of contactor KM2 is connected in parallel across the two terminals of the start switch SB3. The second terminal of the start switch SB4 is connected to the first terminal of the contactor KM3 coil. The normally open switch of contactor KM3 is connected in parallel across the two terminals of the start switch SB4.

[0038] Furthermore, the main circuit includes an air switch QF2. The first end of the main contact of contactor KM1 is connected to the three-phase power supply through air switch QF2, and the second end of the main contact of contactor KM1 is connected to the acquisition terminal card mechanism. The first end of the main contact of contactor KM2 is connected to the three-phase power supply through air switch QF2, and the second end of the main contact of contactor KM2 is connected to the three-phase smart meter card mechanism. The first end of the main contact of contactor KM3 is connected to the three-phase power supply through air switch QF2, and the second end of the main contact of contactor KM3 is connected to the single-phase smart meter card mechanism.

[0039] Furthermore, the backup control circuit includes air switch QF3, emergency stop switch SB5, start switch SB6, start switch SB7, contactor KM4, contactor KM5, indicator lights HL4 and HL5. The first terminal of emergency stop switch SB5 is connected to the three-phase power supply via air switch QF3. The first terminals of normally closed contacts KM1 and KM2 are both connected to the second terminal of emergency stop switch SB5. The second terminal of normally closed contactor KM1 is connected to the first terminal of the contactor KM4 coil and the first terminal of indicator light HL4 via start switch SB6. The second terminal of normally closed contactor KM2 is connected to the first terminal of the contactor KM5 coil and the first terminal of indicator light HL4 via start switch SB7. The first terminal of indicator light HL5, the second terminal of contactor KM4 coil, the second terminal of indicator light HL4, the second terminal of contactor KM5 coil, and the second terminal of indicator light HL5 are all connected to the neutral wire of the three-phase power supply. The first terminals of the normally open switches of contactor KM4 and contactor KM5 are all connected to the second terminal of emergency stop switch SB5. The second terminal of the normally open switch of contactor KM4 is connected to the first terminal of contactor KM4 coil, and the second terminal of the normally open switch of contactor KM5 is connected to the first terminal of contactor KM5 coil. The acquisition terminal carding mechanism is connected to the three-phase power supply through the main contacts of contactor KM4, and the three-phase smart meter carding mechanism is connected to the three-phase power supply through the main contacts of contactor KM5.

[0040] This technical solution uses a DZ47LE-63 (C40) type circuit breaker (i.e., air switch), a CJX2-0901 type AC contactor, a Delixi three-position rotary switch, and a JZ7 series intermediate relay.

[0041] When the rotary switch is turned to the left position, the terminal locking mechanism, the three-phase smart meter locking mechanism, and the single-phase smart meter locking mechanism are all powered on simultaneously. When the rotary switch is turned to the right position, the three locking mechanisms can be controlled to be powered on separately. When the rotary switch is turned to the middle position, the 220V voltage is stopped, and the 100V voltage can be connected. At the same time, it can also be locked to prevent the two power supplies from being powered on at the same time and causing a short circuit.

[0042] Figure 6 is a schematic flowchart of a method according to an embodiment of the present invention. The order of the steps in the flowchart can be changed, and some steps can be omitted, depending on different requirements.

[0043] As shown in Figure 6, the method includes: S1, installing the metering instrument to be debugged and the debugging component into the corresponding mounting slots in the metering instrument snap-fit ​​module; S2, operating the pressing handle in the snap-fit ​​assembly, driving the push rod and the pressure block through the connecting rod to press and fix the metering instrument to be debugged and the debugging component onto the corresponding interface; S3, powering the metering instrument snap-fit ​​module through the power supply module, so that the metering instrument to be debugged and the debugging component are powered on and a 485 communication connection is established; S4, adjusting the first telescopic bracket and the second telescopic bracket in the handheld scanning module, so that the handheld terminal is aligned with the infrared communication port of the metering instrument to be debugged; S5, sliding the first slider along the first slide rail, moving the handheld terminal to the target position, and using the handheld terminal to perform infrared scanning on the metering instrument to achieve data communication and parameter debugging; S6, after debugging is completed, cutting off the power supply module, releasing the pressing handle, and taking out the metering instrument to be debugged and the debugging component.

[0044] To facilitate understanding of the present invention, the following description further illustrates the method of using the metering instrument debugging device provided by the present invention, based on the principle of the method of using the metering instrument debugging device and in conjunction with the process of using the metering instrument debugging device in the embodiments.

[0045] S1. Installation of Instruments and Debugging Components: According to the type of instrument to be debugged (e.g., single-phase smart meter), push the instrument into the corresponding mounting slot along the guide direction so that the power interface and communication interface of the instrument face the interface board; at the same time, push the debugging component (e.g., low-voltage concentrator, used to simulate the field communication environment) into another mounting slot in the same group, ensuring that the interface of the debugging component is aligned with the interface of the instrument.

[0046] S2. Instrument clamping and fixing: Press down on the clamping component's pressing handle. The handle rotates around the connecting block pin, pulling the push rod along the sliding cavity towards the instrument through the connecting rod until the pressure block is tightly against the instrument housing. Continue pressing the handle until a click sound is heard (the positioning protrusion on the handle engages with the positioning groove of the base), ensuring that the instrument interface and the interface board terminal are in tight contact, with no risk of loose connection.

[0047] S3. Power Supply and Communication Establishment: Close the QF1 (control circuit) and QF2 (main circuit) switches in the power supply module distribution box; if debugging a low-voltage instrument (220V / 380V), turn the rotary switch SA1 to the automatic position (left position), the coils of intermediate relays KA1-KA3 are energized, their normally open switches are closed, the coils of KM1-KM3 are energized, the main contacts are closed, the instrument and the debugging component are energized, and HL1-HL3 light up accordingly; at this time, the instrument and the debugging component automatically establish communication through the 485 interface (communication baud rate 9600bps, no parity bit, 8 data bits), and the communication status can be viewed through the display screen of the debugging component (displaying "485 communication normal").

[0048] To debug a high-voltage instrument (100V), first turn SA1 to the middle position (disconnect the 220V power supply), then close the QF3 switch, tighten the SB5 emergency stop switch, and press the SB6-SB7 start switch. The KM4-KM5 coils will be energized (because the normally closed contacts of KM1-KM2 are closed, the interlocking condition is met). The high-voltage instrument will be energized, HL4-HL5 will light up, and 485 communication will be established synchronously.

[0049] S4. Handheld device alignment and debugging: Loosen the locking sliders at both ends of the handheld device scanning module slide rail, slide the first slider along the first slide rail, and move the handheld terminal to the front of the instrument to be debugged; stretch / contract the first telescopic bracket (adjust the front-to-back distance) and the second telescopic bracket (adjust the vertical height), and at the same time rotate the bracket (360° rotation) to align the infrared transmitter of the handheld device with the infrared receiver of the instrument (the alignment distance is controlled within 5-10cm, and the angle deviation does not exceed 5°). After the adjustment is completed, lock the sliders at both ends of the slide rail to fix the position of the handheld device.

[0050] S5. Infrared Scanning and Parameter Adjustment: Start the instrument adjustment program on the handheld terminal, select the corresponding instrument type (e.g., single-phase smart meter), and click "Infrared Scan". The handheld device reads the current parameters of the instrument (e.g., rate, clock, meter number) through infrared signals. After successful reading, the terminal display shows "Scan Successful". Modify the parameters according to the adjustment requirements (e.g., adjust rate 1 to 0.56 yuan / kWh), and click "Parameter Send". The handheld device transmits the modification command to the instrument through infrared signals. After receiving the command, the instrument returns a "Confirmation" signal, and the terminal displays "Adjustment Complete". If multiple instruments need to be adjusted, repeat steps S4-S5 (only slide the slider to move the handheld device; no rewiring is required).

[0051] S6. Final Debugging: After debugging, first disconnect the power supply module (disconnect QF1 / QF2 / QF3), and HL1-HL5 will turn off; pull the pressure handle upward to release the locking of the positioning protrusion, and the push rod will reset under the action of the connecting rod, and the pressure gauge block will disengage from the instrument; remove the debugging parts and the instrument along the mounting groove, and check that the appearance of the instrument is undamaged to complete this debugging.

[0052] When the data acquisition terminal card connection mechanism, the three-phase smart meter card connection mechanism, and the single-phase smart meter card connection mechanism are powered on simultaneously, the single-phase energy meter, the three-phase energy meter, the low-voltage concentrator, and the low-voltage terminal can realize centralized power-on measurement and online communication functions, carrier wave meter reading functions, and 485 communication meter reading functions between the low-voltage concentrator, the low-voltage terminal, and the smart meter. Depending on specific testing needs, KM1 can be activated independently to test the online communication function of the low-voltage concentrator and low-voltage terminal. KM1 and KM2 can be activated simultaneously to test the carrier and 485 communication meter reading functions between the low-voltage concentrator, low-voltage terminal, and three-phase smart meters. KM1 and KM3 can be activated simultaneously to test the carrier and 485 communication meter reading functions of the single-phase smart meters of the low-voltage concentrator. KM2 can be activated to enable infrared and laser operation functions such as modifying electricity price periods and clock synchronization for three-phase smart meters. KM3 can be activated to enable infrared and laser operation functions such as modifying electricity price periods and clock synchronization for single-phase smart meters. KM2 and KM3 can be activated simultaneously to enable infrared and laser operation functions such as modifying electricity price periods and clock synchronization for both single-phase and three-phase smart meters.

[0053] The parameters of the three-phase three-wire 100V and 57.5V high voltage meters were set, and the 485 communication was tested. The online communication function of the data acquisition terminal was also tested.

[0054] Since KM1 and KM4 are powered by the same acquisition terminal card mechanism, KM1 and KM4 are interlocked. KM4 can only be started when KM1 is stopped. Starting KM4 enables online communication testing of three-phase three-wire 100V and 57.5V high-voltage terminals. KM2 and KM5 are interlocked. KM5 can only be started when KM2 is stopped. Starting KM5 enables infrared and laser operation functions such as price time period modification and clock synchronization for three-phase three-wire 100V and 57.5V high-voltage meters. KM2 and KM3 can be started simultaneously to enable infrared and laser operation functions such as price time period modification and clock synchronization for single-phase smart meters and three-phase smart meters.

[0055] The KM4 and KM5 can be started simultaneously to test the 485 communication meter reading function between the high-voltage terminal and the high-voltage smart meter.

[0056] When circuit breaker Q2 is closed, the neutral wires of the low-voltage AC contactors KM1, KM2, and KM3 coils are connected, the neutral wire of the intermediate relay KA coil is connected, and the neutral wires of the indicator lights HL1, HL2, and HL3 are connected. The control live wire is connected to the common point of the rotary switch. When the rotary switch is rotated to the left, pins 3 and 4 are connected, the live wire of the intermediate relay coil is connected, the intermediate relay closes, and the normally open contacts KA1, KA2, and KA3 of the intermediate relay close. The live wires of the coils of the low-voltage AC contactors KM1, KM2, and KM3 are connected, and the normally open main contacts of contactors KM1, KM2, and KM3 close. The terminal card connection mechanism, the three-phase smart meter card connection mechanism, and the single-phase smart meter card connection mechanism are energized, and the indicator lights are simultaneously powered on and remain lit. This enables the simultaneous power-on of the acquisition terminal card connection mechanism, the three-phase smart meter card connection mechanism, and the single-phase smart meter card connection mechanism. The single-phase energy meter, the three-phase energy meter, the low-voltage concentrator, and the low-voltage terminal can realize centralized power-on measurement and online communication functions, carrier wave meter reading functions, and 485 communication meter reading functions between the low-voltage concentrator, the low-voltage terminal, and the smart meter.

[0057] When the rotary switch is turned to the right, contacts 4 and 3 are connected, switching to manual mode. Activating the SB2 start button energizes the KM1 coil, closing the normally open main contact and the normally open auxiliary contact of KM1, illuminating the HL1 indicator light. Releasing the SB2 start button keeps the normally open auxiliary contact of KM1 in place, maintaining power to the acquisition terminal card mechanism, thus enabling online communication functions for testing low-voltage concentrators and low-voltage terminals. Activating the SB3 start button energizes the KM2 coil, closing the normally open main contact and the normally open auxiliary contact of KM2, illuminating the HL2 indicator light. Releasing the SB3 start button keeps the normally open auxiliary contact of KM2 in place, maintaining power to the three-phase smart meter card mechanism, thus enabling infrared and laser operation functions such as modifying electricity price periods and clock synchronization for the three-phase smart meter. When the SB4 start button is pressed, the KM3 coil is energized, the normally open main contact closes, the normally open auxiliary contact of KM3 closes, the HL3 indicator light illuminates, the SB4 start button is released, the normally open auxiliary contact of KM3 remains open, the single-phase smart meter card connection mechanism remains powered, realizing infrared and laser operation functions such as modifying the electricity price period and clock synchronization of the three-phase smart meter.

[0058] Start the SB2 and SB3 start buttons, power on the KM1 and KM2 coils, close the normally open main contacts of KM1 and KM2, and illuminate the HL1 and HL2 indicator lights. Release the SB2 and SB3 start buttons, keep the normally open auxiliary contacts of KM1 and KM2 in place, and keep the power supply on the acquisition terminal card connection mechanism and the three-phase smart meter card connection mechanism. Test the carrier and 485 communication meter reading functions of the low-voltage concentrator, low-voltage terminal and three-phase smart meter.

[0059] Start the SB2 and SB4 start buttons, power on the KM1 and KM3 coils, close the normally open main contacts of KM1 and KM3, and illuminate the HL1 and HL3 indicator lights. Release the SB2 and SB4 start buttons, keep the normally open auxiliary contacts of KM1 and KM3 in place, and keep the power supply on the acquisition terminal card connection mechanism and the single-phase smart meter card connection mechanism. Test the carrier and 485 communication meter reading functions of the low-voltage concentrator and the single-phase smart meter.

[0060] When the SB3 and SB4 start buttons are pressed, the KM2 and KM3 coils are energized, the normally open main contacts of KM2 and KM3 close, and the HL2 and HL3 indicator lights illuminate. When the SB3 and SB4 start buttons are released, the normally open auxiliary contacts of KM2 and KM3 remain in place, and the three-phase locking mechanism and the single-phase smart meter locking mechanism are kept powered, realizing infrared and laser operation functions such as modifying the electricity price period and clock synchronization for single-phase and three-phase smart meters.

[0061] Both KM1 and KM4 are powered by the same acquisition terminal card connection mechanism. Therefore, the normally closed auxiliary contact of KM1 is interlocked with the coil of KM4. The SB6 start button can only be activated when KM1 is stopped. When the coil of KM4 is powered on, the normally open main contact closes and the normally open auxiliary contact of KM4 closes. The HL4 indicator light illuminates. When the SB6 start button is released, the normally open auxiliary contact of KM4 remains open, and the acquisition terminal card connection mechanism continues to be powered, thus realizing the online communication function of the high-voltage terminal for testing.

[0062] Both KM2 and KM5 are powered by the same three-phase smart meter card connection mechanism. Therefore, the normally closed auxiliary contact of KM2 is interlocked with the coil of KM5. The SB6 start button can only be activated when KM2 is stopped. When the coil of KM5 is powered on, the normally open main contact closes, the normally open auxiliary contact of KM4 closes, the HL5 indicator light illuminates, the SB7 start button is released, the normally open auxiliary contact of KM5 remains open, and the three-phase 100V smart meter card connection mechanism continues to be powered, realizing the infrared and laser operation functions of the three-phase 100V smart meter, such as electricity price time period modification and clock synchronization.

[0063] Simultaneously, the SB6 and SB7 start buttons can be activated, the KM4 and KM5 coils can be energized, the normally open main contacts of KM4 and KM5 can be closed, the HL4 and HL5 indicator lights can be lit, the SB6 and SB7 start buttons can be released, the normally open auxiliary contacts of KM4 and KM5 can be held, the acquisition terminal card connection mechanism and the three-phase smart meter card connection mechanism can be powered, and the 485 communication meter reading function between the high voltage terminal and the three-phase 100V smart meter can be tested.

[0064] After this device is completed, power-on testing of all equipment and individual equipment can be performed using an AC contactor.

[0065] Three-phase residual current circuit breakers can be used to prevent leakage and electric shock accidents.

[0066] It can simultaneously perform parameter settings, carrier wave testing, and 485 meter reading tests on low-voltage single-phase and three-phase smart energy meters. It can also perform separate tests. High-voltage and low-voltage terminal parameter settings and 485 testing save 60% of testing and setting time while ensuring personal safety and preventing electric shock.

[0067] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be covered within the protection scope of the present invention.

Claims

1. A debugging device for a metering instrument, characterized in that, include: The handheld scanning module is used to perform infrared scanning on measuring instruments, enabling data exchange, including instrument debugging. The metering instrument connection module includes a data acquisition terminal connection mechanism, a three-phase smart meter connection mechanism, and a single-phase smart meter connection mechanism, which are used to fix different types of metering instruments and provide power connection; the power supply module (130) is used to provide power control for the metering instrument connection module.

2. The calibration device for the metering instrument according to claim 1, characterized in that, The handheld scanning module includes a handheld terminal (111) and a terminal mounting assembly for mounting the handheld terminal (111). The terminal mounting assembly includes a first slide rail (112) fixed on the debugging platform (200). A first slider (113) is provided on the first slide rail (112) and slidably connected to the first slide rail (112). A fixed bracket (114) is vertically mounted on the end of the first slider (113) away from the first slide rail (112). A first telescopic bracket (115) is hinged on the end of the fixed bracket (114) away from the first slider (113). A second telescopic bracket (116) is vertically mounted on the end of the first telescopic bracket (115) away from the fixed bracket (114). A handheld terminal clamp (117) is provided on the end of the second telescopic bracket (116) away from the first telescopic bracket (115).

3. The calibration device for metering instruments according to claim 2, characterized in that, The metering instrument snap-on module is installed on the debugging platform (200) on one side of the first slide rail (112). The acquisition terminal snap-on mechanism, the three-phase smart meter snap-on mechanism and the single-phase smart meter snap-on mechanism all include snap-on components. The debugging platform (200) on the side of the snap-on component away from the first slide rail (112) is fixedly installed with an installation groove (122). Each snap-on component corresponds to two installation grooves (122). The space between the two installation grooves (122) is used to place the corresponding metering instrument to be debugged and the debugging component. The end of the installation groove (122) away from the snap-on component is fixedly installed with the corresponding debugging component interface (123) or the metering instrument interface (123) to be debugged. The debugging component interface (123) and the metering instrument interface (123) to be debugged can communicate via 485.

4. The calibration device for the metering instrument according to claim 3, characterized in that, The snap-fit ​​assembly includes a base (1211) fixed on the debugging platform (200), a connecting block (1212) fixed on the base (1211), a pressing handle (1213) hinged on the connecting block (1212), and a connecting rod (1214) hinged to the pressing handle (1213). A sliding cavity is provided inside the base (1211), and a push rod (1215) arranged perpendicular to the first slide rail (112) is provided inside the sliding cavity. The push rod (1215) extends to the outside of the base (1211). One end of the push rod (1215) in the sliding cavity is hinged to the end of the connecting rod (1214) away from the pressing handle (1213). A pressure gauge block (1216) is fixed to one end of the push rod (1215) outside the base (1211).

5. The calibration device for the metering instrument according to claim 1, characterized in that, The power supply module (130) includes a main circuit, a control circuit and a backup control circuit, which are used to provide power control for the acquisition terminal card connection mechanism, the three-phase smart meter card connection mechanism and the single-phase smart meter card connection mechanism.

6. The calibration device for metering instruments according to claim 5, characterized in that, The control circuit includes an air switch QF1, a rotary switch SA1, intermediate relays KA1, KA2, and KA3, contactors KM1, KM2, and KM3, an emergency stop switch SB1, start switches SB2, SB3, and SB4, and indicator lights HL1, HL2, and HL3. The first terminal of the rotary switch SA1 is connected to the three-phase power supply via the air switch QF1. The second terminal of the rotary switch SA1 is connected to the first terminals of the coils of intermediate relays KA1, KA2, and KA3, as well as the first terminals of the normally open switches of intermediate relays KA1, KA2, and KA3. The second terminals of the coils of intermediate relays KA1, KA2, and KA3 are all connected to the neutral wire of the three-phase power supply. The second terminal of the normally open switch of intermediate relay KA1 is connected to the first terminal of the coil of contactor KM1 and the first terminal of indicator light HL1. The normally open switch of intermediate relay KA2... The second terminal is connected to the first terminal of the contactor KM2 coil and the first terminal of the indicator light HL2. The second terminal of the normally open switch of the intermediate relay KA3 is connected to the first terminal of the contactor KM3 coil and the first terminal of the indicator light HL3. The second terminals of the contactor KM1 coil, the indicator light HL1, the contactor KM2 coil, the indicator light HL2, the contactor KM3 coil, and the indicator light HL3 are all connected to the neutral wire of the three-phase power supply. The first terminals of the start switch SB2, the start switch SB3, and the start switch SB4 are all connected to the third terminal of the rotary switch SA1 through the emergency stop switch SB1. The second terminal of the start switch SB2 is connected to the first terminal of the contactor KM1 coil. The normally open switch of the contactor KM1 is connected in parallel across the two terminals of the start switch SB2. The second terminal of the start switch SB3 is connected to the first terminal of the contactor KM2 coil. The normally open switch of the contactor KM2 is connected in parallel across the two terminals of the start switch SB3. The second terminal of the start switch SB4 is connected to the first terminal of the contactor KM3 coil. The normally open switch of the contactor KM3 is connected in parallel across the two terminals of the start switch SB4.

7. The calibration device for metering instruments according to claim 6, characterized in that, The main circuit includes an air switch QF2. The first end of the main contact of contactor KM1 is connected to the three-phase power supply through air switch QF2. The second end of the main contact of contactor KM1 is connected to the data acquisition terminal card mechanism. The first end of the main contact of contactor KM2 is connected to the three-phase power supply through air switch QF2. The second end of the main contact of contactor KM2 is connected to the three-phase smart meter card mechanism. The first end of the main contact of contactor KM3 is connected to the three-phase power supply through air switch QF2. The second end of the main contact of contactor KM3 is connected to the single-phase smart meter card mechanism.

8. The debugging device for metering instruments according to claim 6, characterized in that, The backup control circuit includes air switch QF3, emergency stop switch SB5, start switch SB6, start switch SB7, contactor KM4, contactor KM5, indicator lights HL4 and HL5. The first terminal of emergency stop switch SB5 is connected to the three-phase power supply via air switch QF3. The first terminals of normally closed contacts KM1 and KM2 are both connected to the second terminal of emergency stop switch SB5. The second terminal of normally closed contactor KM1 is connected to the first terminal of the contactor KM4 coil and the first terminal of indicator light HL4 via start switch SB6. The second terminal of normally closed contactor KM2 is connected to the first terminal of the contactor KM5 coil and the indicator light HL4 via start switch SB7. The first terminal of HL5, the second terminal of the coil of contactor KM4, the second terminal of indicator light HL4, the second terminal of the coil of contactor KM5, and the second terminal of indicator light HL5 are all connected to the neutral wire of the three-phase power supply. The first terminals of the normally open switches of contactor KM4 and contactor KM5 are all connected to the second terminal of emergency stop switch SB5. The second terminal of the normally open switch of contactor KM4 is connected to the first terminal of the coil of contactor KM4, and the second terminal of the normally open switch of contactor KM5 is connected to the first terminal of the coil of contactor KM5. The acquisition terminal carding mechanism is connected to the three-phase power supply through the main contacts of contactor KM4, and the three-phase smart meter carding mechanism is connected to the three-phase power supply through the main contacts of contactor KM5.

9. A method for adjusting a metering instrument using any one of claims 1-8, characterized in that, include: S1. Install the metering instrument to be debugged and the debugging component into the corresponding mounting slot in the metering instrument snap-fit ​​module respectively; S2. The pressing handle in the operating card assembly drives the push rod and the pressure gauge block through the connecting rod to press and fix the metering instrument to be debugged and the debugging component on the corresponding interface; S3. The power supply module powers on the metering instrument card module, so that the metering instrument to be debugged and the debugging component are powered on and a 485 communication connection is established. S4. Adjust the first and second telescopic brackets in the handheld scanning module so that the handheld terminal is aligned with the infrared communication port of the metering instrument to be debugged. S5. Slide the first slider along the first slide rail, move the handheld terminal to the target position, and use the handheld terminal to perform infrared scanning on the measuring instrument to achieve data communication and parameter debugging; S6. After debugging, cut off the power supply module, release the pressure handle, and take out the measuring instrument and debugging parts to be debugged.

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