Portable wireless acquisition gas alarm controller for chemical industry

Abstract

The utility model relates to the technical field of gas alarm equipment, and discloses a portable wireless acquisition gas alarm controller for the chemical industry. The utility model aims to solve the problems in the prior art that gas detection equipment is connected through a cable, and wiring is troublesome; the fixed installation is not suitable for mobile use; furthermore, the gas detection equipment is mainly composed of single gas, and multi-gas detection equipment is inconvenient to access. The device comprises a temperature sensor, the temperature sensor is connected with a main controller, and the main controller is connected with gas detection equipment through an LORA wireless data transmission module; the control signal output end of the main controller is connected with the alarm module. According to the utility model, the portable design is adopted, the position is convenient to move, a wireless data transmission mode is adopted, and the concentration and alarm information of the multi-gas detection equipment can be acquired without wiring.

Description

Technical Field

[0001] The utility model relates to the technical field of gas alarm equipment, in particular to a portable wireless gas collection alarm controller used in the chemical industry. Background Art

[0002] Industrial production processes generate large amounts of waste gas, many of which contain toxic, flammable, and explosive gases, making them a critical concern that must be addressed. Currently, the industry typically uses gas detection alarms to monitor production sites and ensure safety. However, most industrial gas detectors currently used are fixed-type, with blind spots in their detection range, posing a safety hazard. Therefore, there is a need to develop a portable, multi-gas detection alarm that can conduct targeted testing in the area where workers are located, improving the accuracy and relevance of test results.

[0003] Gas alarm controllers are commonly connected to gas detection equipment via cables, including 4-20mA current signal lines and RS485 bus signal lines, which are cumbersome to connect and wire. They are generally fixed installations and unsuitable for mobile use. Gas detection equipment connected to the controllers primarily detects a single gas, making multi-gas detection equipment inconvenient to connect. Portable and mobile gas detection equipment was previously mostly used alone, but now, with the increasing demand for communication transmission, a portable wireless gas alarm controller is needed that can be carried around or flexibly positioned. Portable wireless gas alarm controllers for the chemical industry were developed to address these issues and meet new needs.

[0004] Chinese patent document 202410039881.1 in the prior art discloses a gas alarm, which includes an instrument body, a circuit board, a battery module and a display module arranged in the instrument body, one end of the instrument body is open, the circuit board is fixed to the end of the instrument body away from the opening, a positive connecting piece and a negative connecting post are provided on the circuit board, the battery module is slidably connected to the instrument body, the battery module is used to abut against the positive connecting piece, the display module covers the end of the battery module away from the circuit board, the negative connecting post is connected to the negative pole of the battery module through the display module, a buckle for clamping the display module is provided inside the instrument body, and a case is threadedly connected to the opening of the instrument body.

[0005] However, the above solution has at least the following technical issues during implementation: connecting gas detection equipment via cables is cumbersome; the fixed installation is not suitable for mobile use; and gas detection equipment mainly detects a single gas, making it difficult to connect multiple gas detection equipment. Therefore, there is an urgent need to propose a portable wireless gas collection alarm controller for the chemical industry. Summary of the Invention

[0006] In view of the above technical problems, the present disclosure provides a portable wireless gas collection alarm controller for the chemical industry, which solves the technical problems in the prior art of connecting gas detection equipment through cables, which is troublesome to connect and wire; and is fixedly installed and not suitable for mobile use; furthermore, the gas detection equipment is mainly single-gas, and multi-gas detection equipment is not convenient to connect.

[0007] According to one aspect of the present disclosure, a portable wireless gas collection alarm controller for the chemical industry is provided, comprising a power supply module, the power supply module including a battery management circuit and a voltage regulation circuit, and a 3.7V lithium battery installed for power supply; further comprising a signal acquisition module, the signal acquisition module including a temperature sensor, the output pin of the temperature sensor being connected to a main controller, the main controller being connected to a gas detection device via a LORA wireless data transmission module; the main controller being provided with an input terminal connected to a key detection circuit via a GPIO port; the main controller display signal output terminal being connected to a display via a GPIO port to display gas concentration and device status information; the data transmission pin of the main controller being connected to multiple memories; the main controller control signal output terminal being connected to an alarm module, and the main controller being APM32F103VBT6.

[0008] In some embodiments of the present disclosure, the alarm module includes a buzzer, an indicator light, and a vibrator; the main controller is connected to the buzzer BUZZER1 through the GPIO port PE12 via the transistor Q4, the main controller is connected to the vibrator V1 through the transistor Q3 through PE13, and the main controller is connected to three indicator lights through PB0, PB1, and PB2 via transistors Q7, Q8, and Q9 respectively, and the three indicator lights are a high alarm indicator light, a low alarm indicator light, and a fault indicator light, respectively, to realize an alarm.

[0009] In some embodiments of the present disclosure, the high alarm indicator light includes LED1 and LED2 connected in series, the low alarm indicator light includes LED3 and LED4 connected in series, and the fault indicator light includes LED5 and LED6 connected in series.

[0010] In some embodiments of the present disclosure, the main controller is connected to three memories U8, U9, and U10 through the SCL2 pin and SDA2 pin of the IIC serial port to realize data reading and writing; the memory is 24LC512 to store alarm and fault information.

[0011] In some embodiments of the present disclosure, the GPIO input ports PC0, PC1, PC2, and PC3 of the main controller are connected to detection buttons S2, S3, S4, and S5, respectively.

[0012] In some embodiments of the present disclosure, the battery management circuit includes a charging management chip U1, which is connected to a field effect transistor Q1. The voltage regulation circuit includes voltage conversion chips U2 and U3 to convert the 3.7V battery voltage into a 3.0V voltage.

[0013] In some embodiments of the present disclosure, the signal acquisition module also includes a battery voltage signal acquisition circuit, which includes a transistor Q6, the emitter of which is connected to the battery management circuit, and the collector is connected to the analog-to-digital conversion interface AIN4 of the main controller through a filtering circuit.

[0014] In some embodiments of the present disclosure, the temperature sensor is TC1047, and the output pin of the temperature sensor is connected to the analog-to-digital conversion interface AIN5 of the main controller via a filter circuit.

[0015] In some embodiments of the present disclosure, the display is a 2.4-inch color LCD screen, and the display is connected to voltage conversion chips U4 and U5 to power the display.

[0016] In some embodiments of the present disclosure, the main controller is connected to a USB communication conversion circuit via a serial port, and the USB communication conversion circuit includes a CP2102 chip.

[0017] The beneficial effects of the present invention are:

[0018] As a gas alarm controller, it is powered by a 3.7V lithium battery. It is portable and can be carried with you or placed in a mobile location. It is suitable for use with portable gas detection equipment and can be used in any location.

[0019] It adopts wireless data transmission mode and uses long-distance, low-power LORA wireless communication technology. It can collect concentration and alarm information of multiple gas detection equipment without wiring.

[0020] It uses a 2.4-inch high-contrast color LCD screen to conveniently display the information of multi-gas detection equipment. All 4 gas information of a multi-gas detection equipment can be displayed on one page. The information of up to 8 devices can be displayed in rotation, and the display is clear and beautiful.

[0021] It has USB communication function and can be connected to a computer to transfer data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a block diagram of the portable wireless gas collection alarm controller used in the chemical industry;

[0023] Figure 2 This is the circuit schematic diagram of the power supply module;

[0024] Figure 3This is the schematic diagram of the display circuit;

[0025] Figure 4 This is the main controller circuit schematic;

[0026] Figure 5 This is the circuit schematic diagram of the button module;

[0027] Figure 6 This is the schematic diagram of the memory circuit;

[0028] Figure 7 This is the schematic diagram of the buzzer and vibrator circuit;

[0029] Figure 8 This is the schematic diagram of the USB communication conversion circuit;

[0030] Figure 9 This is the schematic diagram of the temperature sensor circuit;

[0031] Figure 10 This is the schematic diagram of the indicator light circuit; DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention. Example 1

[0033] This example discloses a portable wireless gas collection alarm controller for the chemical industry. Figures 1 to 10 ;

[0034] It includes a power supply module, which includes a battery management circuit and a voltage regulation circuit, and is installed with a 3.7V lithium battery for power supply; it also includes a signal acquisition module, which includes a temperature sensor, the output pin of the temperature sensor is connected to the main controller, and the main controller is connected to the gas detection equipment via the LORA wireless data transmission module; the main controller setting input end is connected to the key detection circuit via the GPIO port; the main controller display signal output end is connected to the display via the GPIO port to display gas concentration and equipment status information; the data transmission pin of the main controller is connected to multiple memories; the main controller control signal output end is connected to the alarm module, and the main controller is APM32F103VBT6.

[0035] The alarm module includes a buzzer, an indicator light, and a vibrator; the main controller is connected to the buzzer BUZZER1 through the GPIO port PE12 via the transistor Q4, the main controller is connected to the vibrator V1 through the transistor Q3 through PE13, and the main controller is connected to three indicator lights through PB0, PB1, and PB2 via transistors Q7, Q8, and Q9 respectively. The three indicator lights are a high alarm indicator light, a low alarm indicator light, and a fault indicator light to realize the alarm.

[0036] The high alarm indicator light includes LED1 and LED2 connected in series, the low alarm indicator light includes LED3 and LED4 connected in series, and the fault indicator light includes LED5 and LED6 connected in series.

[0037] The main controller connects three memories U8, U9, and U10 through the SCL2 and SDA2 pins of the IIC serial port to realize data reading and writing; the memory is 24LC512 to store alarm and fault information.

[0038] The GPIO input ports PC0, PC1, PC2, and PC3 of the main controller are connected to the detection buttons S2, S3, S4, and S5, respectively.

[0039] The battery management circuit includes a charging management chip U1, which is connected to a field effect transistor Q1. The voltage regulation circuit includes voltage conversion chips U2 and U3 to convert the 3.7V battery voltage into a 3.0V voltage.

[0040] The signal acquisition module also includes a battery voltage signal acquisition circuit, which includes a transistor Q6. The emitter of the transistor Q6 is connected to the battery management circuit, and the collector is connected to the analog-to-digital conversion interface AIN4 of the main controller through a filter circuit.

[0041] The temperature sensor is TC1047, and the output pin of the temperature sensor is connected to the analog-to-digital conversion interface AIN5 of the main controller through a filtering circuit.

[0042] The display is a 2.4-inch color LCD screen, which is connected to the voltage conversion chips U4 and U5 to power the display.

[0043] The main controller is connected to the USB communication conversion circuit via a serial port. The USB communication conversion circuit includes a CP2102 chip.

[0044] During operation, the functional structure of the present invention is as shown in the system block diagram. A 3.7V lithium battery is used for power supply, and the battery management and voltage regulation circuits power each part; the main control MCU serves as the control center to communicate data with each part and control input and output; the battery voltage and temperature acquisition and conversion circuit filters and processes the signal and inputs it into the analog-to-digital conversion interface of the main control MCU; the LORA wireless data transmission board communicates with the MCU in serial port mode, converts it into a radio signal and communicates with the external gas detection equipment; the key detection circuit senses the key action and inputs it to the MCU through the GPIO port; the display part is responsible for displaying gas concentration and status information, and is connected to the control output by the GPIO port of the MCU; the memory is responsible for recording alarm and fault information, and interacts with the MCU through the IIC serial port; the USB communication circuit converts the serial port signal of the MCU into a USB communication signal to connect to the computer; the MCU controls the buzzer, indicator light, and vibrator to send out an alarm signal.

[0045] This device uses a 3.7V lithium battery for power, making it portable and portable, suitable for portable use or relocation. In the mainboard circuit diagram, the U1 charge management chip and Q1 field-effect transistor manage the lithium battery's charge; U2 converts the 3.7V battery voltage into 3.0V for the main control MCU; and U3 converts the battery voltage into 3.0V for peripheral devices such as memory and buzzers.

[0046] In the mainboard circuit diagram, R8, R9, Q6, etc. obtain the battery voltage signal, and U13 obtains the temperature voltage signal, which is filtered by R26, C25, R27, C26 and then input into the analog-to-digital conversion interface AIN4 and AIN5 of the MCU.

[0047] This invention adopts wireless data transmission mode and uses LORA wireless communication technology to realize the function of collecting concentration and alarm information of multiple gas detection equipment. The main control connects to the wireless data transmission board through the serial port TX2 and RX2 to send and receive data.

[0048] Connect the GPIO input ports PC0-PC3 of the main MCU to detect the S2-S5 buttons.

[0049] This device uses a 2.4-inch color LCD screen for display, conveniently displaying information from multiple gas detection devices. In the mainboard circuit diagram, U4 and U5 power the LCD, connector J2 connects to the display, Q2 controls the backlight, and the main controller controls the display via GPIO ports PA8, PC6-PC9, and PD0-PD15.

[0050] U8, U9, and U10 store alarm and fault information. The main control connects to the memory through SCL2 and SDA2 of the IIC serial port to read and write data.

[0051] U12 is responsible for USB communication conversion. The main control communicates with U12 through the serial port's TX1, RX1, converts the signal into USB signal, and then connects to the computer through the USB interface J1.

[0052] The main controller connects the transistors through GPIO ports PE12, PE13, PB0-PB2 to control the buzzer BUZZER1, vibrator V1, and indicator lights LED1-LED6 to issue an alarm.

[0053] Although some preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications that fall within the scope of the present invention as well as the preferred embodiments.

[0054] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A portable wireless gas collection alarm controller for the chemical industry, comprising a power supply module, the power supply module including a battery management circuit and a voltage regulation circuit, and a 3.7V lithium battery installed for power supply; characterized by: It also includes a signal acquisition module, which includes a temperature sensor. The output pin of the temperature sensor is connected to the main controller, and the main controller is connected to the gas detection equipment via the LORA wireless data transmission module; the main controller is set to have an input end connected to the key detection circuit via the GPIO port; the main controller display signal output end is connected to the display via the GPIO port to display the gas concentration and equipment status information; the data transmission pin of the main controller is connected to multiple memories; the control signal output end of the main controller is connected to the alarm module, and the main controller is APM32F103VBT6.

2. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The alarm module includes a buzzer, an indicator light, and a vibrator; the main controller is connected to the buzzer BUZZER1 through the GPIO port PE12 via the transistor Q4, the main controller is connected to the vibrator V1 through the transistor Q3 through PE13, and the main controller is connected to three indicator lights through PB0, PB1, and PB2 via transistors Q7, Q8, and Q9 respectively. The three indicator lights are a high alarm indicator light, a low alarm indicator light, and a fault indicator light to realize an alarm.

3. The portable wireless gas collection alarm controller for the chemical industry according to claim 2, characterized in that: The high alarm indicator light includes LED1 and LED2 connected in series, the low alarm indicator light includes LED3 and LED4 connected in series, and the fault indicator light includes LED5 and LED6 connected in series.

4. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The main controller is connected to three memories U8, U9, and U10 through the SCL2 pin and SDA2 pin of the IIC serial port to realize data reading and writing; the memory is 24LC512 to store alarm and fault information.

5. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The GPIO input ports PC0, PC1, PC2, and PC3 of the main controller are connected to the detection buttons S2, S3, S4, and S5 respectively.

6. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The battery management circuit includes a charging management chip U1, which is connected to a field effect transistor Q1. The voltage regulation circuit includes voltage conversion chips U2 and U3 to convert the 3.7V battery voltage into a 3.0V voltage.

7. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The signal acquisition module further includes a battery voltage signal acquisition circuit, which includes a transistor Q6, the emitter of which is connected to the battery management circuit, and the collector of which is connected to the analog-to-digital conversion interface AIN4 of the main controller via a filter circuit.

8. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The temperature sensor is TC1047, and the output pin of the temperature sensor is connected to the analog-to-digital conversion interface AIN5 of the main controller through a filter circuit.

9. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The display is a 2.4-inch color LCD screen, and the display is connected to the voltage conversion chips U4 and U5 to provide power to the display.

10. The portable wireless gas collection alarm controller for the chemical industry according to claim 1, characterized in that: The main controller is connected to a USB communication conversion circuit via a serial port, and the USB communication conversion circuit includes a CP2102 chip.

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