Multi-type sensor automatic identification circuit

Abstract

The utility model discloses a multi-type sensor automatic identification circuit, which relates to the technical field of circuit structures, and comprises a sensor module and an identification circuit module, the sensor module comprises a sensor address unit, a first sensor identification interface unit and a first sensor power supply and communication interface unit, the identification circuit module comprises a second sensor identification interface unit, a second sensor power supply and communication interface unit, a power supply management circuit and a core processing unit, and the core processing unit is connected with the upper computer application software. After the sensor is connected to the second identification interface unit of the identification circuit module, the core processing unit reads the address code of the sensor, identifies the type of the sensor, triggers the corresponding power management unit to supply power to the sensor according to the type of the sensor, and judges whether the current sensor is normal or not through the data communication interface. If the state of the sensor is normal, configuration parameters related to the sensor are automatically issued, and the sensor is automatically disconnected after configuration is finished.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit structures, and particularly relates to a multi-type sensor automatic identification circuit. Background Technique

[0002] A sensor is a detection device that can sense the information to be measured and transform the sensed information into an electrical signal or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording, and control.

[0003] Sensors are widely used, covering every corner of life, industry, and the military. There are many types of sensors with different electrical characteristics, different power supply voltages and interfaces, and various configuration methods, which bring great trouble to users. Therefore, we provide a multi-type sensor automatic identification circuit. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-type sensor automatic identification circuit to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multi-type sensor automatic identification circuit, including:

[0006] A sensor module, the sensor module includes a sensor address unit, a first sensor identification interface unit, and a first sensor power supply and communication interface unit;

[0007] An identification circuit module, the identification circuit module includes a second sensor identification interface unit, a second sensor power supply and communication interface unit, a power management circuit, and a core processing unit. The identification circuit module is connected to the sensor module, the second sensor power supply and communication interface unit is connected to the first sensor power supply and communication interface unit, the power management circuit is connected to the core processing unit, and the core processing unit is connected to the upper computer application software.

[0008] Preferably, the ADD1 pin in the sensor address unit is electrically connected to the ADD1 pin in the first sensor identification interface unit, the ADD2 pin in the sensor address unit is electrically connected to the ADD2 pin in the first sensor identification interface unit, the ADD3 pin in the sensor address unit is electrically connected to the ADD3 pin in the first sensor identification interface unit, the ADD4 pin in the sensor address unit is electrically connected to the ADD4 pin in the first sensor identification interface unit, and the ADD5 pin in the sensor address unit is electrically connected to the ADD5 pin in the first sensor identification interface unit.

[0009] Preferably, the ADD1 pin in the second sensor identification interface unit is electrically connected to the ADD1 pin in the core processing unit, the ADD2 pin in the second sensor identification interface unit is electrically connected to the ADD2 pin in the core processing unit, the ADD3 pin in the second sensor identification interface unit is electrically connected to the ADD3 pin in the core processing unit, the ADD4 pin in the second sensor identification interface unit is electrically connected to the ADD4 pin in the core processing unit, and the ADD5 pin in the second sensor identification interface unit is electrically connected to the ADD5 pin in the core processing unit.

[0010] Preferably, the first sensor identification interface unit is electrically connected to the second sensor identification interface unit.

[0011] Preferably, EN POWER1 in the core processing unit is electrically connected to EN POWER1 in the power management circuit, EN POWER2 in the core processing unit is electrically connected to EN POWER2 in the power management circuit, and EN POWER3 in the core processing unit is electrically connected to EN POWER3 in the power management circuit.

[0012] Preferably, VOL+ in the power management circuit is electrically connected to VOL+ in the first sensor power supply and communication interface unit.

[0013] Preferably, the TXD pin in the core processing unit is connected to the TXD pin in the second sensor power supply and communication interface unit.

[0014] Preferably, the RXD pin in the core processing unit is connected to the RXD pin in the second sensor power supply and communication interface unit.

[0015] The technical effects and advantages of the present utility model:

[0016] After the sensor of the present utility model is connected to the second identification interface unit of the identification circuit module, the core processing unit reads the sensor address code and identifies the sensor type, triggers the corresponding power management unit to supply power to the sensor according to the sensor type, judges whether the current sensor is normal through the data communication interface, and automatically sends the configuration parameters related to the sensor if the sensor status is normal, and automatically disconnects the sensor after the configuration is completed. Brief Description of the Drawings

[0017] Figure 1 It is a circuit schematic diagram of the present utility model. Detailed Embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] The present utility model provides a multi-type sensor automatic identification circuit as Figure 1 shown, which includes a sensor module and an identification circuit module. The sensor module includes a sensor address unit, a first sensor identification interface unit, and a first sensor power supply and communication interface unit. The identification circuit module includes a second sensor identification interface unit, a second sensor power supply and communication interface unit, a power management circuit, and a core processing unit. The identification circuit module is connected to the sensor module, the second sensor power supply and communication interface unit is connected to the first sensor power supply and communication interface unit, the power management circuit is connected to the core processing unit, and the core processing unit is connected to the upper computer application software. After the sensor is connected to the second identification interface unit of the identification circuit module, the core processing unit reads the sensor address code and identifies the sensor type, triggers the corresponding power management unit to supply power to the sensor according to the sensor type, judges whether the current sensor is normal through the data communication interface, and automatically issues the configuration parameters related to the sensor if the sensor status is normal. After the configuration is completed, the sensor is automatically disconnected. This technical solution can automatically identify 32 types of sensors. Each sensor is set with 5-bit sensor address bits, and each address can be set to be turned on or off through a DIP switch, and 32 data sensor address codes can be completed. The sensor address code reading of the test unit and the sensor power supply management circuit are managed by a 48-pin MCU controller STM32F103. After the test unit is powered on, it reads the connection status of the sensor and its address code, identifies the sensor type, controls the power management output to supply a matching power supply voltage, and uploads the sensor type to the upper computer application software to complete the configuration of the channel parameters.

[0020] Among them, the ADD1 pin in the sensor address unit is electrically connected to the ADD1 pin in the first sensor identification interface unit, the ADD2 pin in the sensor address unit is electrically connected to the ADD2 pin in the first sensor identification interface unit, the ADD3 pin in the sensor address unit is electrically connected to the ADD3 pin in the first sensor identification interface unit, the ADD4 pin in the sensor address unit is electrically connected to the ADD4 pin in the first sensor identification interface unit, and the ADD5 pin in the sensor address unit is electrically connected to the ADD5 pin in the first sensor identification interface unit.

[0021] Among them, the ADD1 pin in the second sensor identification interface unit is electrically connected to the ADD1 pin in the core processing unit, the ADD2 pin in the second sensor identification interface unit is electrically connected to the ADD2 pin in the core processing unit, the ADD3 pin in the second sensor identification interface unit is electrically connected to the ADD3 pin in the core processing unit, the ADD4 pin in the second sensor identification interface unit is electrically connected to the ADD4 pin in the core processing unit, and the ADD5 pin in the second sensor identification interface unit is electrically connected to the ADD5 pin in the core processing unit, so that the second sensor interface unit is connected to the core processing unit.

[0022] Among them, the first sensor identification interface unit is electrically connected to the second sensor identification interface unit.

[0023] Among them, EN in the core processing unit POWER1 is electrically connected to EN POWER1 in the power management circuit, EN POWER2 in the core processing unit is electrically connected to EN POWER2 in the power management circuit, and EN POWER3 in the core processing unit is electrically connected to EN POWER3 in the power management circuit, so that the core processing unit and the power management circuit are connected. VOL+ in the power management circuit is electrically connected to VOL+ in the first sensor power supply and communication interface unit. When the identification circuit module identifies the type of the sensor, the core processor controls EN POWER1, EN POWER1, EN POWER2 and EN POWER3 to start the corresponding power management. The current flows from VOL+ in the power management circuit to VOL+ of the first sensor power supply and communication interface and then supplies power to the sensor.

[0024] Among them, the TXD pin in the core processing unit is connected to the TXD pin in the second sensor power supply and communication interface unit, and the RXD pin in the core processing unit is connected to the RXD pin in the second sensor power supply and communication interface unit. The core processing unit is connected to the second sensor power supply and communication interface through TXD and RXD, and the configuration instruction is sent to the sensor module through the second sensor power supply and communication interface for automatic parameter configuration.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic recognition circuit for multi-type sensors, characterized in that, Including: A sensor module, which includes a sensor address unit, a first sensor identification interface unit, and a first sensor power supply and communication interface unit; An identification circuit module, which includes a second sensor identification interface unit, a second sensor power supply and communication interface unit, a power management circuit, and a core processing unit. The identification circuit module is connected to the sensor module. The second sensor power supply and communication interface unit is connected to the first sensor power supply and communication interface unit. The power management circuit is connected to the core processing unit. The core processing unit is connected to the upper computer application software.

2. The automatic recognition circuit for multiple types of sensors according to claim 1, wherein The ADD1 pin in the sensor address unit is electrically connected to the ADD1 pin in the first sensor identification interface unit. The ADD2 pin in the sensor address unit is electrically connected to the ADD2 pin in the first sensor identification interface unit. The ADD3 pin in the sensor address unit is electrically connected to the ADD3 pin in the first sensor identification interface unit. The ADD4 pin in the sensor address unit is electrically connected to the ADD4 pin in the first sensor identification interface unit. The ADD5 pin in the sensor address unit is electrically connected to the ADD5 pin in the first sensor identification interface unit.

3. The automatic recognition circuit for multiple types of sensors according to claim 1, wherein The ADD1 pin in the second sensor identification interface unit is electrically connected to the ADD1 pin in the core processing unit. The ADD2 pin in the second sensor identification interface unit is electrically connected to the ADD2 pin in the core processing unit. The ADD3 pin in the second sensor identification interface unit is electrically connected to the ADD3 pin in the core processing unit. The ADD4 pin in the second sensor identification interface unit is electrically connected to the ADD4 pin in the core processing unit. The ADD5 pin in the second sensor identification interface unit is electrically connected to the ADD5 pin in the core processing unit.

4. The automatic recognition circuit for multiple types of sensors according to claim 1, wherein, The first sensor identification interface unit is electrically connected to the second sensor identification interface unit.

5. The automatic recognition circuit for multiple types of sensors according to claim 1, characterized in that, ENPOWER1 in the core processing unit is electrically connected to ENPOWER1 in the power management circuit. EN POWER2 in the core processing unit is electrically connected to EN POWER2 in the power management circuit. ENPOWER3 in the core processing unit is electrically connected to ENPOWER3 in the power management circuit.

6. The automatic recognition circuit for multiple types of sensors according to claim 1, wherein VOL+ in the power management circuit is electrically connected to VOL+ in the first sensor power supply and communication interface unit.

7. The automatic recognition circuit for multiple types of sensors according to claim 1, characterized in that The TXD pin in the core processing unit is connected to the TXD pin in the second sensor power supply and communication interface unit.

8. The automatic recognition circuit for multiple types of sensors according to claim 1, characterized in that, The RXD pin in the core processing unit is connected to the RXD pin in the second sensor power supply and communication interface unit.

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