Intelligent joint control device

Abstract

The utility model discloses an intelligent joint control device, which comprises an environmental parameter acquisition circuit, a microcontroller, an alarm analysis circuit and an alarm control circuit, the microcontroller is connected between the environmental parameter acquisition circuit and the alarm analysis circuit, and the alarm control circuit is connected with the alarm analysis circuit. The environment parameter acquisition circuit comprises a voltage source, a comparison circuit, a resistance type sensor, an amplification circuit and an analog-to-digital conversion circuit. The comparison circuit is connected with the resistance-type sensor and the voltage source, and maps the resistance value of the resistance-type sensor into the product of the corresponding proportionality coefficient and the power supply voltage of the voltage source; the amplification circuit is connected with the comparison circuit and the analog-to-digital conversion circuit and amplifies the output voltage of the comparison circuit; the analog-to-digital conversion circuit is connected with the voltage source and the amplifying circuit and converts the ratio of the output voltage of the amplifying circuit to the power supply voltage of the voltage source into a digital value; the microcontroller maps the digital value to a physical value. The scheme improves the precision, reduces the cost and simplifies the circuit.

Description

Technical Field

[0001] The utility model relates to an intelligent joint control device. Background Art

[0002] Smart factories need to design intelligent joint control devices to monitor the operation of smart factories, detect abnormalities in time and respond. Refer to the smart factory information management monitoring system proposed in Chinese invention patent CN110794800B and the smart factory production online monitoring and analysis system based on machine vision proposed in Chinese invention patent CN116841262A.

[0003] The environmental parameter acquisition circuit in the intelligent joint control device includes a resistance sensor. In the prior art, two high-precision voltage sources are required for a single resistance sensor. Figure 2 , assuming that both high-precision voltage sources a and b provide a 3V high-precision reference voltage, the comparison circuit maps the resistance value of the resistive sensor to a 1.5V high-precision comparison voltage, which is amplified by a 1:1 amplifier circuit to generate a 1.5V high-precision comparison voltage. The 1.5V high-precision comparison voltage and the 3V high-precision reference voltage are input to the analog-to-digital conversion circuit ADC for analog-to-digital conversion to obtain a 50% high-precision ADC result. The current resistance value of the resistive sensor can be inferred from this 50% high-precision ADC comparison result. This is an exemplary explanation, and the amplifier circuit can also amplify the voltage signal by tens to hundreds of times.

[0004] Equipping each resistive sensor with two high-precision voltage sources has high cost and complex circuit structure. The errors of the two high-precision voltage sources produce a superposition effect, making error control difficult. Utility Model Content

[0005] The utility model provides an intelligent joint control device to reduce costs, simplify circuits and improve accuracy.

[0006] The intelligent joint control device comprises: an environmental parameter acquisition circuit, a microcontroller, an alarm analysis circuit and an alarm control circuit, wherein the microcontroller is connected between the environmental parameter acquisition circuit and the alarm analysis circuit, the alarm control circuit is connected to the alarm analysis circuit, and the environmental parameter acquisition circuit comprises: a voltage source, a comparison circuit, a resistance type sensor, an amplifier circuit and an analog-to-digital conversion circuit; the comparison circuit is connected to the resistance type sensor and the voltage source, and is used to map the resistance value of the resistance type sensor to the product of the corresponding proportional coefficient and the power supply voltage of the voltage source; the amplifier circuit is connected to the comparison circuit and the analog-to-digital conversion circuit, and is used to amplify the output voltage of the comparison circuit; the analog-to-digital conversion circuit is connected to the voltage source and the amplifier circuit, and is used to convert the ratio of the output voltage of the amplifier circuit to the power supply voltage of the voltage source into a digital value; the microcontroller is used to map the digital value into a physical value;

[0007] The comparison circuit includes: a second resistor, a third resistor, and a fifth resistor. The first ends of the second resistor and the third resistor are both connected to the voltage source, the second end of the third resistor and the first end of the fifth resistor are both connected to a first node, the first node serves as an output end of the comparison circuit, the second end of the second resistor is connected to the first end of the resistance type sensor, the second end of the fifth resistor and the second end of the resistance type sensor are both grounded, the connection node between the second resistor and the resistance type sensor is a second node, and the second node serves as another output end of the comparison circuit.

[0008] Optionally, the amplification circuit includes: a fourth resistor, a first resistor, a ninth resistor, a tenth resistor and an operational amplifier, the two ends of the fourth resistor are respectively connected to the first node and the negative polarity input terminal of the operational amplifier, the two ends of the first resistor are respectively connected to the negative polarity input terminal of the operational amplifier and the output terminal of the operational amplifier, the output terminal of the operational amplifier is connected to an input terminal of the analog-to-digital conversion circuit, the positive polarity input terminal of the operational amplifier is connected to the second node, the power supply of the transport amplifier is provided by the voltage source, the two ends of the ninth resistor are respectively connected to the second node and the positive polarity input terminal of the operational amplifier, and the two ends of the tenth resistor are respectively connected to the ground and the positive polarity input terminal of the operational amplifier.

[0009] Optionally, it also includes a video image acquisition circuit and a data communication circuit, and the data communication circuit connects the video image acquisition circuit and the alarm analysis circuit.

[0010] Optionally, it also includes a display device connected to the alarm analysis circuit.

[0011] Optionally, it also includes at least one of an alarm, a wireless transmission circuit, and a device control circuit respectively connected to the alarm control circuit.

[0012] The technical solution of the utility model is helpful to reduce costs, simplify circuits and improve accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a circuit structure block diagram of the intelligent joint control device of the utility model.

[0014] Figure 2 It is a circuit block diagram of an environmental parameter acquisition circuit in the prior art.

[0015] Figure 3 The utility model is a circuit block diagram of the environmental parameter acquisition circuit.

[0016] Figure 4 The utility model is a circuit diagram of an environmental parameter acquisition circuit. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0018] Figure 1 It is a circuit structure block diagram of the intelligent joint control device of the utility model.

[0019] The environmental parameter acquisition circuit 1 is connected to the microcontroller 2, the video image acquisition circuit 3 is connected to the data communication circuit 4, the microcontroller 2 and the data communication circuit 4 are both connected to the alarm analysis circuit 5, the alarm analysis circuit 5 is also connected to the display 7 and the alarm control circuit 6, and the alarm control circuit 6 is also connected to the alarm 8, the wireless transmission circuit 9 and the equipment control circuit 10.

[0020] The environmental parameter acquisition circuit 1 acquires environmental parameters, such as temperature, brightness, and pressure, converts the acquired environmental parameters into digital quantities, and then sends them to the microcontroller 2 .

[0021] The microcontroller 2 sends the received environmental parameters to the alarm analysis circuit 5 .

[0022] The video image acquisition circuit 3 includes video image acquisition equipment, such as various cameras, which acquires video images in the smart factory and sends the acquired video images to the data communication circuit 4 .

[0023] The data communication circuit 4 sends the video image to the alarm analysis circuit 5 .

[0024] After receiving the environmental parameters and the video image, the alarm analysis circuit 5 analyzes the environmental parameters and the video image respectively, generates an alarm signal, and sends the alarm signal to the alarm control circuit 6. The alarm analysis circuit 5 can use any other existing analysis method to analyze the environmental parameters and the video image.

[0025] The alarm analysis circuit 5 generates an alarm signal when the temperature value is higher than the set temperature, for example.

[0026] For example, deep learning-based target detection and recognition technology (Yolo-V8), target tracking technology (DeepSort), text recognition technology (OCR) and machine learning-based data classification technology (SVM) can be used.

[0027] The target detection and recognition (Yolo-v8) technology can extract the equipment target and personnel target information in the video data in real time; among them, the equipment target information includes the equipment name, equipment type, equipment location, instrument panel location and indicator light status; the personnel target information includes the personnel location and personnel clothing attributes; the target tracking (DeepSort) technology can use the personnel location information to track and record the walking trajectory information of the personnel in real time; the text recognition (OCR) technology can extract the text data information on the equipment instrument panel in real time. According to the equipment type and location information, the equipment radius range area can be automatically divided into the limit area and the safety area; further, according to the walking trajectory of the personnel, whether there is any violation of personnel behavior can be monitored in real time. The alarm analysis circuit can also use the data classification (SVM) technology based on machine learning to analyze the equipment instrument data and environmental data to obtain the current environmental status and equipment operation status (normal, alarm, shutdown). According to the impact of the alarm, the fault level, alarm mode and emergency response strategy are determined and divided in advance, and the sound and light alarm, wireless alarm, mechanical equipment emergency control and other operations are performed according to different situations.

[0028] The alarm control circuit 6 is connected to an alarm device 8, and the alarm device 8 performs sound and light alarms.

[0029] The alarm control circuit 6 is connected to the wireless transmission circuit 9, and the wireless transmission circuit 9 wirelessly transmits the alarm information to other devices (for example, a user's handheld mobile terminal).

[0030] The alarm control circuit 6 is connected to the equipment control circuit 10 , and the equipment control circuit 10 can control the production equipment running in the smart factory, for example, in response to the alarm signal sent by the alarm control circuit 6 , the production equipment can be stopped urgently.

[0031] The utility model optimizes the design of the environmental parameter acquisition circuit. Figure 3 The utility model is a circuit block diagram of the environmental parameter acquisition circuit.

[0032] The comparison circuit connects the resistance sensor and the low-precision voltage source, and maps the resistance value of the resistance sensor to the product of the power supply voltage of the low-precision voltage source and the corresponding proportional coefficient as the comparison voltage containing the low-precision component. Assuming that the power supply voltage of the low-precision voltage source is x, the voltage value output by the comparison circuit is 0.25x.

[0033] The amplifier circuit amplifies the output voltage of the comparison circuit by a set proportionality factor, for example, a proportionality factor of 1:1.

[0034] The low-precision voltage source is connected to the analog-to-digital conversion circuit ADC to provide a low-precision reference voltage (eg, x).

[0035] The amplifier circuit is connected to the analog-to-digital conversion circuit ADC, and provides the 1:1 amplified comparison voltage containing the low-precision component to the analog-to-digital conversion circuit ADC. This is an exemplary description, and the amplifier circuit can also amplify the voltage signal by tens to hundreds of times.

[0036] The analog-to-digital conversion circuit outputs the ratio of the comparison voltage containing the low-precision component to the low-precision reference voltage (ie, the high-precision ADC result).

[0037] For example, reference Figure 3 , the low-precision reference voltage x is 4000, and the comparison voltage containing the low-precision component is 1000. The influence of the low-precision reference voltage is removed by the proportional coefficient 1000 / 4000=0.25. The resistance value of the resistive sensor can be inferred from the proportional coefficient 0.25 and the circuit structure of the comparison circuit.

[0038] Each resistive sensor is equipped with a low-precision voltage source, which has low cost and simple circuit structure, and avoids the error superposition effect of multiple voltage sources.

[0039] Figure 4 The utility model is a circuit diagram of an environmental parameter acquisition circuit.

[0040] A low-precision voltage source VDD provides the power supply voltage.

[0041] The resistance sensor T may be a temperature sensor (thermistor), a brightness sensor (photoresistor), or a pressure sensor (piezoresistor).

[0042] The third resistor R3, the second resistor R2 and the fifth resistor R5 form a comparison circuit. The comparison circuit and the resistance type sensor T form a resistance network connected between the low precision voltage source VDD and the ground GND, mapping the resistance value of the resistance type touch sensor T to the voltage between the first node N1 and the second node N2.

[0043] The fourth resistor R4, the first resistor R1, the ninth resistor R9, the tenth resistor R10, the capacitor C3, and the operational amplifier U1A are connected to form an amplifier circuit, which amplifies the voltage between the first node N1 and the second node N2 and then inputs it to the analog-to-digital conversion circuit ADC. The analog-to-digital conversion circuit ADC compares the output voltage of the operational amplifier circuit with the voltage of the low-precision voltage source VDD to obtain a comparison result.

[0044] Combination Figure 1 The microcontroller circuit 2 reversely infers the resistance value of the resistance sensor T according to the comparison result, and then obtains the current temperature value of the resistance sensor T according to a preset mapping relationship.

[0045] Since the output result of the analog-to-digital conversion circuit ADC has nothing to do with the power supply voltage value of the voltage source, the voltage source can be a low-precision voltage source or a high-precision voltage source. The former is more conducive to reducing costs.

[0046] The various embodiments of the present invention are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0047] The protection scope of the present invention is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the scope and spirit of the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalents, the intent of the present invention also includes these modifications and variations.

Claims

1. An intelligent joint control device, comprising an alarm analysis circuit, characterized in that: The intelligent joint control device also includes: an environmental parameter acquisition circuit, a microcontroller and an alarm control circuit, the microcontroller is connected between the environmental parameter acquisition circuit and the alarm analysis circuit, the alarm control circuit is connected to the alarm analysis circuit, and the environmental parameter acquisition circuit includes: a voltage source, a comparison circuit, a resistance type sensor, an amplifier circuit and an analog-to-digital conversion circuit; the comparison circuit is connected to the resistance type sensor and the voltage source, and is used to map the resistance value of the resistance type sensor to the product of the corresponding proportional coefficient and the power supply voltage of the voltage source; the amplifier circuit is connected to the comparison circuit and the analog-to-digital conversion circuit, and is used to amplify the output voltage of the comparison circuit; the analog-to-digital conversion circuit is connected to the voltage source and the amplifier circuit, and is used to convert the ratio of the output voltage of the amplifier circuit to the power supply voltage of the voltage source into a digital value; the microcontroller is used to map the digital value to a physical value; The comparison circuit includes: a second resistor, a third resistor, and a fifth resistor. The first ends of the second resistor and the third resistor are both connected to the voltage source, the second end of the third resistor and the first end of the fifth resistor are both connected to a first node, the first node serves as an output end of the comparison circuit, the second end of the second resistor is connected to the first end of the resistance type sensor, the second end of the fifth resistor and the second end of the resistance type sensor are both grounded, the connection node between the second resistor and the resistance type sensor is a second node, and the second node serves as another output end of the comparison circuit.

2. The intelligent joint control device according to claim 1, characterized in that: The amplification circuit includes: a fourth resistor, a first resistor, a ninth resistor, a tenth resistor and an operational amplifier, wherein two ends of the fourth resistor are respectively connected to the first node and a negative polarity input end of the operational amplifier, two ends of the first resistor are respectively connected to the negative polarity input end of the operational amplifier and an output end of the operational amplifier, the output end of the operational amplifier is connected to an input end of the analog-to-digital conversion circuit, the positive polarity input end of the operational amplifier is connected to the second node, the power supply of the operational amplifier is provided by the voltage source, two ends of the ninth resistor are respectively connected to the second node and a positive polarity input end of the operational amplifier, and two ends of the tenth resistor are respectively connected to the ground and a positive polarity input end of the operational amplifier.

3. The intelligent joint control device according to claim 1, characterized in that: It also includes a video image acquisition circuit and a data communication circuit, and the data communication circuit is connected to the video image acquisition circuit and the alarm analysis circuit.

4. The intelligent joint control device according to claim 1, characterized in that: Also included is a display device connected to the alarm analysis circuit.

5. The intelligent joint control device according to claim 1, characterized in that: It also includes at least one of an alarm, a wireless transmission circuit, and a device control circuit respectively connected to the alarm control circuit.

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