Bluetooth adjusting and detecting circuit and system for electric energy meter and circuit breaker

Abstract

The invention belongs to the technical field of Bluetooth communication detection, and particularly relates to a Bluetooth adjusting and detecting circuit and system for an electric energy meter and a circuit breaker. The Bluetooth adjustment and detection circuit comprises an upper computer, a switch switching unit and a Bluetooth conversion unit, wherein the upper computer is used for sending a switching control signal to the switch switching unit and sending a Bluetooth adjustment and detection command to a detection device; the switch switching unit is used for selectively conducting a circuit between the detection device and the Bluetooth conversion unit or a circuit between the detection device and the product to be detected according to the switching control signal; the Bluetooth conversion unit is used for sending a Bluetooth adjustment and detection command of the detection device to a product to be detected and receiving returned data; the switch control signal comprises a Bluetooth adjustment and detection control signal and a non-Bluetooth adjustment and detection control signal, so that the detection device without the Bluetooth adjustment and detection function realizes Bluetooth adjustment and detection of the electric energy meter and the circuit breaker on the basis of the original function, and the production cost is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of Bluetooth communication detection, and in particular relates to a Bluetooth debugging circuit and system for an electric energy meter and a circuit breaker. Background Art

[0002] With the promotion and application of smart Bluetooth circuit breakers in IoT electric energy meters in recent years, electric energy meters with Bluetooth function can communicate with the Bluetooth receiving circuit of the circuit breaker through the set Bluetooth transmitting circuit to read the circuit status of the circuit breaker load switch and judge whether the circuit breaker is switched on or off. Figure 1 As shown. Therefore, it is necessary to debug the Bluetooth function of the energy meter and the circuit breaker to improve the Bluetooth communication quality of the energy meter and the circuit breaker. To this end, the energy meter and circuit breaker manufacturers need to purchase a special Bluetooth debugging station or an automated Bluetooth debugging warehouse to perform Bluetooth debugging on the energy meter and circuit breaker products that contain Bluetooth functions. For example, a Chinese patent application with application publication number CN114513267A discloses a Bluetooth test device for an energy meter, including a shielding box, a Bluetooth test board arranged in the shielding box, a turntable, an energy meter tooling and an antenna, and a host computer and a Bluetooth comprehensive tester arranged outside the shielding box. The energy meter tooling is fixedly connected to the turntable, and the host computer communicates with the Bluetooth test board and the turntable respectively. Wired connection, the electric energy meter to be tested is installed on the electric energy meter tooling; the Bluetooth test board and the electric energy meter to be tested are connected by wireless Bluetooth communication to control the electric energy meter to be tested to transmit Bluetooth test signals; the host computer is electrically connected to the Bluetooth comprehensive tester, and the Bluetooth comprehensive tester is wired to each antenna. The host computer uses the Bluetooth comprehensive tester to control the opening of antennas in different directions to receive Bluetooth test signals in a time-sharing manner. The Bluetooth comprehensive tester analyzes the RF performance parameters of the electric energy meter to be tested based on the Bluetooth test signals received by the antenna at multiple times and sends them to the host computer to complete the RF performance test of the electric energy meter to be tested. It sets up a dedicated Bluetooth detection device for Bluetooth debugging, and cannot use the existing electric energy meter or circuit breaker product detection device for Bluetooth debugging in the production test process, which increases the production cost. Summary of the invention

[0003] The object of the present invention is to provide a Bluetooth debugging circuit and system for electric energy meters and circuit breakers, so as to solve the problem of high production costs of Bluetooth electric energy meters and circuit breakers caused by the need to purchase a special Bluetooth debugging device for Bluetooth debugging.

[0004] In order to solve the above technical problems, the present invention provides a Bluetooth debugging circuit for electric energy meters and circuit breakers, comprising a host computer, a switch switching unit and a Bluetooth conversion unit, wherein the host computer is used to send a switching control signal to the switch switching unit and send a Bluetooth debugging command to the detection device; the switch switching unit is used to select a circuit between the conductive detection device and the Bluetooth conversion unit or between the detection device and the product to be tested according to the switching control signal; the Bluetooth conversion unit is used to connect to the detection device to send the Bluetooth debugging command sent by the detection device to the product to be tested and receive the returned data; the switching control signal includes a Bluetooth debugging control signal and a non-Bluetooth debugging control signal.

[0005] Furthermore, the switch switching unit is a relay switching unit, including a relay coil and two contact switches, the first contact switch is arranged in the loop between the detection device and the Bluetooth conversion unit, and the second contact switch is arranged in the loop between the detection device and the product to be tested; the relay coil is used to switch the contact switch.

[0006] Furthermore, the first contact switch is a normally open switch, and the second contact switch is a normally closed switch.

[0007] Furthermore, the host computer includes a PC and a control unit, the PC is used to send a switching control signal to the control unit, and the control unit is used to parse the switching control signal and control the switch switching unit according to the parsed switching control signal.

[0008] Furthermore, the switch switching unit, control unit and Bluetooth conversion unit are also connected to a power conversion module, which is used to connect to the detection device and convert the power supply voltage of the detection device into a voltage level corresponding to the working power supply of each unit of the Bluetooth detection circuit for power supply.

[0009] The beneficial effects of the above technical scheme are as follows: the present invention is a pioneering invention, which is designed for a Bluetooth debugging circuit for electric energy meters and circuit breakers. The debugging circuit is used to connect to an existing detection device that does not have a Bluetooth detection function. The switch switching unit is controlled by a host computer. When Bluetooth debugging is required, the switch switching unit is controlled to conduct the circuit between the detection device and the Bluetooth conversion unit, so that the detection device sends a Bluetooth debugging command to the electric energy meter or circuit breaker to be tested through the Bluetooth conversion unit and receives the data returned by the electric energy meter or circuit breaker to complete the Bluetooth debugging, thereby eliminating the need to purchase a dedicated Bluetooth debugging station or an automated Bluetooth debugging warehouse, so that the detection device without a Bluetooth debugging function can realize Bluetooth debugging of the electric energy meter and circuit breaker on the basis of the original function, saving production costs, and only needs to send a switching control signal to control the switch switching unit to switch the circuit between the conductive detection device and the product to be tested to realize the detection of the original function, thereby improving the production efficiency of the Internet of Things electric energy meter and the smart Bluetooth circuit breaker.

[0010] In order to solve the above technical problems, the present invention also provides a Bluetooth debugging system for electric energy meters and circuit breakers, comprising a detection device, and also comprising a host computer, a switch switching unit and a Bluetooth conversion unit, wherein the host computer is used to send a switching control signal to the switch switching unit and send a Bluetooth debugging command to the detection device; the switch switching unit is used to select a circuit between the conductive detection device and the Bluetooth conversion unit or between the detection device and the product to be tested according to the switching control signal; the Bluetooth conversion unit is used to connect to the detection device to send the Bluetooth debugging command sent by the detection device to the product to be tested and receive the returned data; the switching control signal includes a Bluetooth debugging control signal and a non-Bluetooth debugging control signal.

[0011] Furthermore, the switch switching unit is a relay switching unit, including a relay coil and two contact switches, the first contact switch is arranged in the loop between the detection device and the Bluetooth conversion unit, and the second contact switch is arranged in the loop between the detection device and the product to be tested; the relay coil is used to switch the contact switch.

[0012] Furthermore, the first contact switch is a normally open switch, and the second contact switch is a normally closed switch.

[0013] Furthermore, the host computer includes a PC and a control unit, the PC is used to send a switching control signal to the control unit, and the control unit is used to parse the switching control signal and control the switch switching unit according to the parsed switching control signal.

[0014] Furthermore, the switch switching unit, control unit and Bluetooth conversion unit are also connected to a power conversion module, which is used to connect to the detection device and convert the power supply voltage of the detection device into a voltage level corresponding to the working power supply of each unit of the Bluetooth detection circuit for power supply.

[0015] The beneficial effects of the above technical scheme are as follows: the present invention is a pioneering invention, which is designed for a Bluetooth debugging circuit for electric energy meters and circuit breakers. The debugging circuit is used to connect to an existing detection device that does not have a Bluetooth detection function. The switch switching unit is controlled by a host computer. When Bluetooth debugging is required, the switch switching unit is controlled to conduct the circuit between the detection device and the Bluetooth conversion unit, so that the detection device sends a Bluetooth debugging command to the electric energy meter or circuit breaker to be tested through the Bluetooth conversion unit and receives data returned by the electric energy meter or circuit breaker to complete the Bluetooth debugging. There is no need to purchase a dedicated Bluetooth debugging station or an automated Bluetooth debugging warehouse, so that the detection device without a Bluetooth debugging function can realize Bluetooth debugging of electric energy meters and circuit breakers on the basis of the original function, saving production costs and improving the production efficiency of IoT electric energy meters and smart Bluetooth circuit breakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of Bluetooth communication between a Bluetooth electric energy meter and a circuit breaker in the prior art; Figure 2 It is a block diagram of a Bluetooth debugging circuit for an electric energy meter and a circuit breaker in an embodiment of a Bluetooth debugging circuit of the present invention; Figure 3 It is a schematic diagram of the RS485 communication circuit of the Bluetooth debugging circuit embodiment of the present invention; Figure 4 This is a circuit schematic diagram of a control unit of an embodiment of a Bluetooth debugging circuit of the present invention; Figure 5 It is a schematic diagram of a relay switching circuit of an embodiment of a Bluetooth debugging circuit of the present invention; Figure 6 It is a schematic diagram of a power conversion circuit of an embodiment of a Bluetooth debugging circuit of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clear, the specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings.

[0018] The present invention designs a Bluetooth debugging circuit connected to an existing detection device without a Bluetooth detection function, and selects the conduction detection device and the Bluetooth conversion unit or the circuit between the detection device and the product to be tested through a host computer control switch switching unit, so that the detection device without the Bluetooth debugging function realizes the Bluetooth debugging of the electric energy meter and the circuit breaker on the basis of the original function, without the need to purchase a special Bluetooth debugging station or an automated Bluetooth debugging warehouse, saving production costs, and only needs to send a switching control signal to control the relay switching unit to switch the circuit between the conduction detection device and the product to be tested to realize the detection of the original function, without the need to connect the product to be tested to two sets of detection devices respectively to test the Bluetooth function and the basic function respectively, which greatly improves the production efficiency of the Internet of Things electric energy meter and the smart Bluetooth circuit breaker.

[0019] Bluetooth debugging circuit embodiment The present invention provides a Bluetooth debugging circuit for electric energy meters and circuit breakers, such as Figure 2 As shown, it includes a host computer, a switch switching unit and a Bluetooth conversion unit. The host computer is used to send a switching control signal to the switch switching unit and send a Bluetooth debugging command to the detection device; the switch switching unit is used to select the circuit between the detection device and the Bluetooth conversion unit or the detection device and the product to be tested according to the switching control signal; the Bluetooth conversion unit is used to connect with the detection device to send the Bluetooth debugging command sent by the detection device to the product to be tested and receive the returned data; the switch control signal includes a Bluetooth debugging control signal and a non-Bluetooth debugging control signal. The product to be tested refers to the electric energy meter and / or circuit breaker to be tested, and the Bluetooth conversion unit is a Bluetooth converter.

[0020] The host computer can be an integrated MCU, or it can be composed of a PC and a control unit. The PC is used to send a switching control signal to the control unit, and the control unit is used to analyze the switching control signal and control the switch switching unit according to the analyzed switching control signal. The PC and the control unit can communicate with each other using an existing communication module, such as an RS485 communication circuit. The structure of the RS485 communication circuit is as follows: Figure 3 The 485A and 485B interfaces of the RS485 communication circuit are connected to the host computer to receive the switching control signal sent by the host computer, and the 485_CTR interface is connected to the control unit to send the switching control signal to the control unit. The control unit uses a microprocessor, such as Figure 4 As shown, the microprocessor analyzes the switching control signal and sends the analyzed switching control signal to the switch switching unit. The control unit can also be a PLC controller, and the host computer controls the PLC controller to output the switching control signal, that is, the low level signal and the high level signal.

[0021] The switch switching unit is a relay switching unit, including a relay coil and two contact switches, the first contact switch is arranged in the loop between the detection device and the Bluetooth conversion unit, and the second contact switch is arranged in the loop between the detection device and the product to be tested; the relay coil is used to switch the contact switch, such as Figure 5 As shown. In this embodiment, the data of the relay switching unit is transmitted in two lines. The control principle of the relay coil is to set a switch tube Q1 in series on the power supply circuit of the coil. The control end of Q1 is connected to the output end of the control unit. When Bluetooth debugging is required, the control unit outputs a Bluetooth debugging control signal that can turn on the switch tube, turn on the triode to make the coil energized, and the relay coil controls the first contact switch to close with power, and starts Bluetooth debugging. The host computer can send the Bluetooth debugging command to the detection station through the serial port. The detection station sends the original pulse clock signal and the Bluetooth debugging command to the Bluetooth conversion unit through the relay switching unit. After receiving the original pulse clock signal and the Bluetooth debugging command, the Bluetooth conversion unit transmits the original pulse clock signal and the Bluetooth debugging command to the electric energy meter or circuit breaker to be debugged, and returns the data fed back by the electric energy meter or circuit breaker to the detection station through the relay switching unit. The relay switching unit is also provided with an indication circuit for prompting to switch to the Bluetooth debugging circuit. The indication circuit includes a light-emitting diode LED5. When the relay coil is energized, the light-emitting diode works normally, prompting the first contact switch to close and start Bluetooth debugging. U6 and U7 are relays, 1-JDQ_C / P and 2-JDQ_C / P receive the analyzed switching control signal sent by the control unit, 1-C and 2-C are the contacts for connecting the product to be tested, 1-C / P / Q and 1-C / P / Q are the connection detection devices ( Figure 5The detection device and the product to be tested are connected to the detection platform in the test station, and 1-P and 2-P are the contacts connected to the Bluetooth conversion unit. When the second contact switch is closed, the circuit between the detection device and the product to be tested is connected, which can be used to debug the non-Bluetooth function of the product. When the first contact switch is closed, the circuit between the detection device and the Bluetooth conversion unit is connected, which can be used to debug the Bluetooth function of the product. Preferably, the first contact switch is set as a normally open switch, and the second contact switch is set as a normally closed switch.

[0022] A separately provided battery can be used to provide working power for the communication module, the relay switching unit, the control unit and the Bluetooth conversion unit. As a preferred embodiment, the present invention uses the power supply of the detection device for power supply, the communication module, the relay switching unit, the control unit and the Bluetooth conversion unit are connected to the power conversion module, the power conversion module is connected to the detection device, and the power supply voltage of the detection device is converted into a voltage level corresponding to the working power supply of each unit of the Bluetooth detection circuit for power supply. The circuit of the power conversion module is as follows: Figure 6 shown.

[0023] Bluetooth debugging system embodiment A Bluetooth debugging system for an electric energy meter and a circuit breaker of the present invention comprises a Bluetooth debugging circuit and a detection device. The Bluetooth debugging circuit is a Bluetooth debugging circuit for an electric energy meter and a circuit breaker described in the above-mentioned Bluetooth debugging circuit embodiment, which will not be described in detail here.

Claims

1. A Bluetooth debugging circuit for electric energy meters and circuit breakers, characterized in that: It includes a host computer, a switch switching unit and a Bluetooth conversion unit. The host computer is used to send a switching control signal to the switch switching unit and send a Bluetooth debugging command to the detection device; the switch switching unit is used to select a circuit between the detection device and the Bluetooth conversion unit or between the detection device and the product to be tested according to the switching control signal; the Bluetooth conversion unit is used to connect to the detection device to send the Bluetooth debugging command sent by the detection device to the product to be tested and receive the returned data; the switching control signal includes a Bluetooth debugging control signal and a non-Bluetooth debugging control signal.

2. The Bluetooth debugging circuit for electric energy meter and circuit breaker according to claim 1 is characterized in that: The switch switching unit is a relay switching unit, including a relay coil and two contact switches, the first contact switch is arranged in the loop between the detection device and the Bluetooth conversion unit, and the second contact switch is arranged in the loop between the detection device and the product to be tested; the relay coil is used to switch the contact switch.

3. The Bluetooth debugging circuit for electric energy meter and circuit breaker according to claim 2 is characterized in that: The first contact switch is a normally open switch, and the second contact switch is a normally closed switch.

4. The Bluetooth debugging circuit for electric energy meter and circuit breaker according to claim 1 is characterized in that: The host computer includes a PC and a control unit. The PC is used to send a switching control signal to the control unit. The control unit is used to analyze the switching control signal and control the switch switching unit according to the analyzed switching control signal.

5. The Bluetooth debugging circuit for electric energy meter and circuit breaker according to claim 4 is characterized in that: The switch switching unit, control unit and Bluetooth conversion unit are also connected to a power conversion module, which is used to connect to the detection device and convert the power supply voltage of the detection device into a voltage level corresponding to the working power supply of each unit of the Bluetooth detection circuit for power supply.

6. A Bluetooth debugging system for electric energy meters and circuit breakers, comprising a detection device, characterized in that: It also includes a host computer, a switch switching unit and a Bluetooth conversion unit. The host computer is used to send a switching control signal to the switch switching unit and send a Bluetooth debugging command to the detection device; the switch switching unit is used to select a circuit between the detection device and the Bluetooth conversion unit or between the detection device and the product to be tested according to the switching control signal; the Bluetooth conversion unit is used to connect to the detection device to send the Bluetooth debugging command sent by the detection device to the product to be tested and receive the returned data; the switching control signal includes a Bluetooth debugging control signal and a non-Bluetooth debugging control signal.

7. The Bluetooth debugging system for electric energy meters and circuit breakers according to claim 6 is characterized in that: The switch switching unit is a relay switching unit, including a relay coil and two contact switches, the first contact switch is arranged in the loop between the detection device and the Bluetooth conversion unit, and the second contact switch is arranged in the loop between the detection device and the product to be tested; the relay coil is used to switch the contact switch.

8. The Bluetooth debugging system for electric energy meters and circuit breakers according to claim 7 is characterized in that: The first contact switch is a normally open switch, and the second contact switch is a normally closed switch.

9. The Bluetooth debugging system for electric energy meters and circuit breakers according to claim 6, characterized in that: The host computer includes a PC and a control unit. The PC is used to send a switching control signal to the control unit. The control unit is used to analyze the switching control signal and control the switch switching unit according to the analyzed switching control signal.

10. The Bluetooth debugging system for electric energy meters and circuit breakers according to claim 9, characterized in that: The switch switching unit, control unit and Bluetooth conversion unit are also connected to a power conversion module, which is used to connect to the detection device and convert the power supply voltage of the detection device into a voltage level corresponding to the working power supply of each unit of the Bluetooth detection circuit for power supply.

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