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

Abstract

The utility model 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 utility model belongs to the technical field of bluetooth communication detection, and particularly relates to a bluetooth detection circuit and system for electric energy meter and circuit breaker. BACKGROUND

[0002] With the popularization and application of intelligent bluetooth circuit breakers in the Internet of Things electric energy meter in recent years, the electric energy meter with bluetooth function can communicate with the bluetooth receiving circuit of the circuit breaker through the set bluetooth transmitting circuit to read the circuit breaker load switch circuit state and judge whether the circuit breaker is on or off, as shown in the drawing. Figure 1 Therefore, the bluetooth function of the electric energy meter and the circuit breaker needs to be detected and adjusted to improve the bluetooth communication quality of the electric energy meter and the circuit breaker. For this purpose, the electric energy meter and circuit breaker manufacturers need to purchase special bluetooth detection tables or automatic bluetooth detection warehouses to detect and adjust the electric energy meter and circuit breaker products containing the bluetooth function. For example, the Chinese patent application with the application publication number CN114513267A discloses a bluetooth test device for electric energy meter, which comprises a shielding box, a bluetooth test board arranged in the shielding box, a turntable, an electric energy meter tool, and an antenna, and an upper computer and a bluetooth comprehensive tester arranged outside the shielding box. The electric energy meter tool is fixedly connected to the turntable. The upper computer is connected to the bluetooth test board and the turntable through wires. The electric energy meter to be tested is installed on the electric energy meter tool. The bluetooth test board and the electric energy meter to be tested are connected through wireless bluetooth communication. The electric energy meter to be tested transmits a bluetooth test signal. The upper computer is electrically connected to the bluetooth comprehensive tester. The bluetooth comprehensive tester is connected to each antenna through wires. The upper computer controls the opening of different direction antennas to receive the bluetooth test signal through the bluetooth comprehensive tester. The bluetooth comprehensive tester analyzes the radio frequency performance parameters of the electric energy meter to be tested according to the bluetooth test signals received by the antennas at different times and sends them to the upper computer, thereby completing the radio frequency performance test of the electric energy meter to be tested. The special bluetooth detection device is used to detect and adjust the bluetooth, which cannot be used for bluetooth detection in the production test process using the existing electric energy meter or circuit breaker product detection device, thereby increasing the production cost. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a bluetooth detection circuit and system for electric energy meter and circuit breaker to solve the problem of high production cost of bluetooth electric energy meter and circuit breaker caused by the need to purchase special bluetooth detection devices for bluetooth detection.

[0004] The utility model discloses a kind of Bluetooth detection circuits for electric energy meter and circuit breaker to solve above-mentioned technical problem, including host computer, switch switching unit and Bluetooth conversion unit, the host computer is used to send switching control signal to switch switching unit, sends Bluetooth detection command to detection device;The switch switching unit is used to select the circuit between detection device and Bluetooth conversion unit or detection device and the product to be measured according to switching control signal;The Bluetooth conversion unit is used to connect with detection device, to send the Bluetooth detection command sent by detection device to the product to be measured and receive returned data;Switching control signal includes Bluetooth detection control signal and non-Bluetooth detection control signal.

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

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

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

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

[0009] The above technical solution has the following advantages: the utility model discloses an opening-type invention, and the Bluetooth detection circuit for electric energy meter and circuit breaker is designed, which is connected with the existing detection device without Bluetooth detection function, and the switch switching unit is controlled by the host computer.When Bluetooth detection is needed, the circuit between detection device and Bluetooth conversion unit is turned on by controlling switch switching unit, so that detection device sends Bluetooth detection command to the electric energy meter or circuit breaker to be measured through Bluetooth conversion unit and receives the data returned by electric energy meter or circuit breaker to complete Bluetooth detection, thereby avoiding the need to purchase a dedicated Bluetooth detection station or automatic Bluetooth detection warehouse, so that the detection device without Bluetooth detection function realizes Bluetooth detection of electric energy meter and circuit breaker based on the original function, saves production cost, and only needs to send switching control signal to control switch switching unit to switch the circuit between detection device and the product to be measured to realize the detection of the original function, thereby improving the production efficiency of connected electric energy meter and intelligent Bluetooth circuit breaker.

[0010] To solve the above technical problems, the utility model also provides a bluetooth detection system for electric energy meter and circuit breaker, including detection device, still include host computer, switch switching unit and bluetooth conversion unit, host computer is used to send switching control signal to switch switching unit, sends bluetooth detection command to detection device to switch switching unit, detection device and bluetooth conversion unit or the circuit between detection device and the product to be measured is selected according to switching control signal, bluetooth conversion unit is used to connect with detection device, to send the bluetooth detection command sent by detection device to the product to be measured and receives the data returned, switching control signal includes bluetooth detection control signal and non bluetooth detection control signal.

[0011] Further, 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 measured, and the relay coil is used to switch the contact switches.

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

[0013] Further, the host computer includes a PC computer and a control unit, the PC computer is used to send the 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.

[0014] Further, the switch switching unit, the control unit and the bluetooth conversion unit are further connected with a power conversion module, and the power conversion module is used to connect the detection device, 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, and then supply power.

[0015] The above technical scheme has the beneficial effects that: the utility model is an open-ended invention, and the bluetooth detection circuit for electric energy meters and circuit breakers is designed, which is connected with the existing detection device without bluetooth detection function, the switch switching unit is controlled by the host computer, when bluetooth detection is needed, the circuit between the detection device and the bluetooth conversion unit is turned on by the switch switching unit, so that the detection device sends the bluetooth detection command to the electric energy meter or the circuit breaker to be measured through the bluetooth conversion unit, and the data returned by the electric energy meter or the circuit breaker is received to complete the bluetooth detection, so that a special bluetooth detection platform or an automatic bluetooth detection warehouse is not needed, the detection device without bluetooth detection function realizes the bluetooth detection of the electric energy meter and the circuit breaker on the basis of the original function, the production cost is saved, and the production efficiency of the connected electric energy meter and the intelligent bluetooth circuit breaker is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of Bluetooth communication between a Bluetooth electric energy meter and a circuit breaker in the prior art;

[0017] Figure 2 is a Bluetooth detection circuit block diagram for an electric energy meter and a circuit breaker of a Bluetooth detection circuit embodiment of the utility model;

[0018] Figure 3 is a RS485 communication circuit principle diagram of a Bluetooth detection circuit embodiment of the utility model;

[0019] Figure 4 is a control unit circuit principle diagram of a Bluetooth detection circuit embodiment of the utility model;

[0020] Figure 5 is a relay switching circuit principle diagram of a Bluetooth detection circuit embodiment of the utility model;

[0021] Figure 6 is a power conversion circuit principle diagram of a Bluetooth detection circuit embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the specific implementation of the utility model will be further described below in combination with the drawings.

[0023] The utility model designs Bluetooth detection circuit which is connected to the existing detection device without Bluetooth detection function, and through the upper computer control switch switching unit, the circuit between the detection device and the Bluetooth conversion unit or the detection device and the product to be detected is selected to be conducted, so that the detection device without Bluetooth detection function realizes the Bluetooth detection of the electric energy meter and the circuit breaker on the basis of the original function, without purchasing special Bluetooth detection platform or automatic Bluetooth detection warehouse, saving the production cost, and only by sending switching control signal to control the relay switching unit to switch the circuit between the detection device and the product to be detected, the original function detection can be realized, without connecting the product to be detected to two sets of detection devices respectively for Bluetooth function test and basic function test, which greatly improves the production efficiency of the connected electric energy meter and the intelligent Bluetooth circuit breaker.

[0024] Bluetooth detection circuit embodiment

[0025] The Bluetooth detection circuit for the electric energy meter and the circuit breaker of the utility model, like Figure 2As shown, the device includes a host computer, a switch switching unit and a Bluetooth switching unit. The host computer is configured to send a switching control signal to the switch switching unit and a Bluetooth test command to the detection device. The switch switching unit is configured to select the detection device and the Bluetooth switching unit or the circuit between the detection device and the product to be tested according to the switching control signal. The Bluetooth switching unit is configured to connect with the detection device to send the Bluetooth test command sent by the detection device to the product to be tested and receive the returned data. The switching control signal includes a Bluetooth test control signal and a non-Bluetooth test control signal. The product to be tested refers to the electric energy meter and / or circuit breaker to be tested. The Bluetooth switching unit is a Bluetooth converter.

[0026] The host computer can be an integrated MCU or composed of a PC computer and a control unit. The PC computer is configured to send a switching control signal to the control unit. The control unit is configured to analyze the switching control signal and control the switch switching unit according to the analyzed switching control signal. The PC computer and the control unit can communicate through an existing communication module, such as an RS485 communication circuit. Figure 3 As shown, the RS485 communication circuit includes a 485A interface and a 485B interface connected to the host computer to receive the switching control signal sent by the host computer and a 485_CTR interface connected to the control unit to send the switching control signal to the control unit. 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. The host computer sends a low-level signal and a high-level signal to the PLC controller to output the switching control signal.

[0027] 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 circuit between the detection device and the Bluetooth switching unit. The second contact switch is arranged in the circuit between the detection device and the product to be tested. The relay coil is configured to switch the contact switches. Figure 5The data of the relay switching unit is double-line transmission in this embodiment. The control principle of the relay coil is that a switch tube Q1 is connected in series in the power supply circuit of the coil, the control end of the switch tube Q1 is connected with the output end of the control unit, when Bluetooth detection is needed, the control unit outputs a Bluetooth detection control signal capable of turning on the switch tube, the switch tube is turned on, the coil is electrified, the first contact switch is closed under the control of the electrified relay coil, and Bluetooth detection is started. The host computer can send a Bluetooth detection command to the detection station through a serial port, the detection station sends the original pulse clock signal and the Bluetooth detection command to the Bluetooth conversion unit through the relay switching unit, after the Bluetooth conversion unit receives the original pulse clock signal and the Bluetooth detection command, the original pulse clock signal and the Bluetooth detection command are transmitted to the electric energy meter or the circuit breaker to be detected, and the data fed back by the electric energy meter or the circuit breaker to be detected is returned to the detection station through the relay switching unit. The relay switching unit is also provided with an indicating circuit for prompting switching to the Bluetooth detection circuit, the indicating circuit comprises a light emitting diode LED 5, when the relay coil is electrified, the light emitting diode normally works, and the first contact switch is closed to start Bluetooth detection. 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 contact points connected with the product to be detected, 1-C / P / Q and 1-C / P / Q are contact points connected with the detection station in the detection device Figure 5 When the second contact switch is closed, the circuit between the detection device and the product to be detected is in communication, and can be used for detecting 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 in communication, and can be used for Bluetooth detection of the product. Preferably, the first contact switch is a normally open switch, and the second contact switch is a normally closed switch.

[0028] A separately arranged battery can be used to provide working power supply for the communication module, the relay switching unit, the control unit and the Bluetooth conversion unit. As a preferred embodiment, the utility model utilizes 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 with the power supply conversion module, the power supply conversion module is connected with the detection device, converts the power voltage of the detection device into the voltage level corresponding to the working power supply of each unit of the Bluetooth detection circuit, and then supplies power, and the circuit of the power supply conversion module is as shown in Figure 6 .

[0029] Bluetooth detection system embodiment

[0030] The Bluetooth detection system for electric energy meters and circuit breakers comprises a Bluetooth detection circuit and a detection device. The Bluetooth detection circuit is the Bluetooth detection circuit for electric energy meters and circuit breakers described in the Bluetooth detection circuit embodiment, and will not be described in detail here.

Claims

1. A Bluetooth metering circuit for an electricity meter and a circuit breaker, characterized by, The application relates to a switching control system for a Bluetooth detection device, which comprises a host computer, a switching unit and a Bluetooth conversion unit, wherein the host computer is used for sending a switching control signal to the switching unit and sending a Bluetooth detection command to a detection device; the switching unit is used for selecting a circuit between the detection device and the Bluetooth conversion unit or between the detection device and a product to be detected according to the switching control signal; the Bluetooth conversion unit is connected with the detection device and used for sending the Bluetooth detection command sent by the detection device to the product to be detected and receiving returned data; and the switching control signal comprises a Bluetooth detection control signal and a non-Bluetooth detection control signal.

2. The Bluetooth metering circuit for an electricity meter and a circuit breaker according to claim 1, characterized in that, The switching unit is a relay switching unit, which comprises a relay coil and two contact switches; a first contact switch is arranged in a loop between the detection device and the Bluetooth conversion unit, and a second contact switch is arranged in a loop between the detection device and the product to be detected; and the relay coil is used for switching the contact switches.

3. The Bluetooth metering circuit for an electricity meter and a circuit breaker according to claim 2, 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 metering circuit for electric meter and circuit breaker as claimed in claim 1 wherein, The host computer comprises a PC computer and a control unit; the PC computer is used for sending the switching control signal to the control unit; and the control unit is used for analyzing the switching control signal and controlling the switching unit according to the analyzed switching control signal.

5. The Bluetooth metering circuit for an electricity meter and a circuit breaker according to claim 4, characterized in that, The switching unit, the control unit and the Bluetooth conversion unit are further connected with a power conversion module, which is used for connecting the detection device, converting a power supply voltage of the detection device into voltage levels corresponding to working power supply voltages of units of a Bluetooth detection circuit and then supplying power.

6. A Bluetooth monitoring system for an electricity meter and a circuit breaker, comprising a detection device, characterized in that, The application relates to a switching control system for a Bluetooth detection device, which comprises a host computer, a switching unit and a Bluetooth conversion unit, wherein the host computer is used for sending a switching control signal to the switching unit and sending a Bluetooth detection command to a detection device; the switching unit is used for selecting a circuit between the detection device and the Bluetooth conversion unit or between the detection device and a product to be detected according to the switching control signal; the Bluetooth conversion unit is connected with the detection device and used for sending the Bluetooth detection command sent by the detection device to the product to be detected and receiving returned data; and the switching control signal comprises a Bluetooth detection control signal and a non-Bluetooth detection control signal.

7. The Bluetooth commissioning system for an electricity meter and a circuit breaker according to claim 6, characterized by, The switching unit is a relay switching unit, which comprises a relay coil and two contact switches; a first contact switch is arranged in a loop between the detection device and the Bluetooth conversion unit, and a second contact switch is arranged in a loop between the detection device and the product to be detected; and the relay coil is used for switching the contact switches.

8. The Bluetooth monitoring and control system for an electricity meter and a circuit breaker according to claim 7, characterized by, The first contact switch is a normally open switch, and the second contact switch is a normally closed switch.

9. The Bluetooth monitoring and control system for an electricity meter and a circuit breaker according to claim 6, wherein, The host computer comprises a PC computer and a control unit; the PC computer is used for sending the switching control signal to the control unit; and the control unit is used for analyzing the switching control signal and controlling the switching unit according to the analyzed switching control signal.

10. The Bluetooth commissioning system for an electricity meter and a circuit breaker according to claim 9, characterized by, The switching unit, the control unit and the Bluetooth conversion unit are further connected with a power conversion module, which is used for connecting the detection device, converting a power supply voltage of the detection device into voltage levels corresponding to working power supply voltages of units of a Bluetooth detection circuit and then supplying power.

Images