CN219038982U - Support gaseous detector of multiple gaseous detection - Google Patents

Abstract

The utility model relates to the technical field of gas detection, in particular to a gas detector supporting multiple gas detection, comprising: a controller and at least one sensor module; the sensor module includes: a sensor link module, a programmable gas sensor chip, sensor interface and memory. The gas detector that supports the detection of multiple gases changes the measurement accuracy and measurement range of the programmable gas sensor chip through the controller to call the algorithm information stored in the memory for detecting different gases, making it suitable for the detection of different gases, programmable The detection signal of the gas sensor chip is fed back to the controller through the sensor link module. Compared with the traditional gas detector, different algorithms can be used for detection of different gases, and the detectable range of the detector for different gas types can be improved. Ease of use.

Description

A gas detector supporting multi-gas detection

technical field

The utility model relates to the technical field of gas detection, in particular to a gas detector supporting multiple gas detection.

Background technique

Gas detector is an instrumentation tool for gas leakage concentration detection, including: portable gas detector, hand-held gas detector, fixed gas detector, online gas detector, etc. Gas sensors are mainly used to detect the types of gases existing in the environment. Gas sensors are sensors used to detect the composition and content of gases.

At present, the existing gas detector controller is connected to the gas detection sensor through the sensor link module. The gas detection sensor detects the gas in the environment and feeds back the detection signal to the controller. The controller analyzes the gas composition according to its stored detection algorithm. , but during the detection process, the detection signal fed back by a certain type of gas detection sensor can only detect the specific gas concentration according to a specific detection algorithm. When detecting different gas components, it is necessary to replace the gas detector with different detection algorithms. It is very inconvenient to use. In view of this, we propose a gas detector that supports multiple gas detection.

Utility model content

The purpose of this utility model is to provide a gas detector that supports detection of multiple gases, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A gas detector supporting multiple gas detection, including: a controller and at least one sensor module; the sensor module includes: a sensor link module, a programmable gas sensor chip, a sensor interface and a memory; wherein, the The three sets of signal input terminals of the sensor link module are respectively connected to the CO contact, W0 contact and R0 contact of the programmable gas sensor chip, and the signal output terminals of the sensor link module are connected to the SIG_TOX of the controller pins; two sets of signal input ends of the sensor interface are respectively connected to the SCL pin and the SDA pin of the controller, and three sets of signal output ends of the sensor interface are respectively connected to the CO contact of the programmable gas sensor chip point, W0 contact and R0 contact; the memory is connected to the programmable gas sensor chip, and is used for storing algorithm information of multiple different gas detections.

Preferably, the controller is also connected with a battery module for powering it.

Preferably, the controller is also connected with a temperature measurement module for measuring the ambient temperature of the gas to be detected.

Preferably, the temperature measurement module is a temperature sensor.

Preferably, the controller is also connected with a communication module for transmitting gas detection data.

Preferably, the communication module is an infrared receiving transmitter.

Preferably, the controller is also connected with an acousto-optic and vibration alarm that sends out an alarm when the gas detection data is abnormal.

Compared with the prior art, the beneficial effect of the utility model is that the gas detector supporting multiple gas detection can change the measurement of the programmable gas sensor chip by calling the algorithm information stored in the memory for detecting different gases through the controller. The accuracy and measurement range make it suitable for the detection of different gases. The programmable gas sensor chip detects and feeds the detection signal back to the controller through the sensor link module. Compared with traditional gas detectors, different algorithms can be used for different gases. To perform detection, improve the detectable range of the detector for different gas types, and be easy to use.

Description of drawings

Fig. 1 is a schematic block diagram of the overall structure of the utility model;

Fig. 2 is the circuit connection schematic diagram of controller in the utility model;

Fig. 3 is a schematic diagram of the circuit connection of the sensor module in the utility model.

In the figure: 1. Controller; 2. Sensor module; 21. Sensor link module; 22. Programmable gas sensor chip; 23. Sensor interface; 24. Memory; 3. Battery module; 4. Temperature measurement module; 5 , Communication module; 6, Sound and light vibration alarm.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of this patent, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting , can also be detachably connected and set, or integrally connected and set. Those of ordinary skill in the art can understand the specific meanings of the above terms in this patent according to specific situations.

A gas detector supporting the detection of multiple gases, as shown in Figure 1, Figure 2 and Figure 3, includes: a controller 1 and at least one sensor module 2; the sensor module 2 includes: a sensor link module 21, which can Programming gas sensor chip 22, sensor interface 23 and memory 24; Wherein, three groups of signal input terminals of sensor link module 21 are respectively connected to CO contact, W0 contact and R0 contact of programmable gas sensor chip 22, sensor chain The signal output end of the circuit module 21 is connected to the SIG_TOX pin of the controller 1; the two sets of signal input ends of the sensor interface 23 are respectively connected to the SCL pin and the SDA pin of the controller 1, and the three sets of signal output ends of the sensor interface 23 are respectively connected to The CO contact, W0 contact and R0 contact of the programmable gas sensor chip 22; the memory 24 is connected to the programmable gas sensor chip 22, and is used for storing algorithm information of various gas detection. Therefore, the gas detector changes the measurement accuracy and measurement range of the programmable gas sensor chip 22 through the controller 1 calling the algorithm information stored in the memory 24 for detecting different gases, so that it is suitable for the detection of different gases. The sensor chip 22 detects and feeds the detection signal back to the controller 1 through the sensor link module 21. Compared with the traditional gas detector, it can detect different gases with different algorithms and improve the detectability of the detector for different gas types. range for ease of use.

In addition, the controller 1 is also connected with a battery module 3 for powering it. The battery module 3 in this embodiment is a charge-discharge battery, which is used to supply power to the controller 1, and can also be charged for battery life when the battery is exhausted.

Further, the controller 1 is also connected with a temperature measurement module 4 for measuring the ambient temperature of the gas to be detected, and the temperature measurement module 4 is a temperature sensor. It is convenient for the gas detector to sense the ambient temperature through the controller 1 so as to obtain a more suitable ambient temperature for gas detection.

Specifically, the controller 1 is also connected with a communication module 5 for transmitting gas detection data; the communication module 5 is an infrared receiving transmitter. By setting the infrared receiving transmitter as the communication module 5, the detection data of the gas detector can be remotely transmitted to the PC terminal or mobile terminal equipment, which is convenient for data transmission.

In addition, the controller 1 is also connected with an acousto-optic and vibration alarm 6 that issues an alarm when the gas detection data is detected to be abnormal. The acousto-optic vibration alarm 6 can send an alarm in the form of sound, light and vibration when the gas detection data is abnormal, prompting the user to detect abnormality in the gas.

It is worth noting that, as shown in Figure 2 is the schematic diagram of the circuit connection of the controller, as shown in Figure 3 is the schematic diagram of the circuit connection of the sensor module, the sensor link module, battery module, temperature measurement module in this embodiment Both the communication module and the communication module are existing technologies, and those skilled in the art can complete the connection of the pins through the existing technology to realize the technical effect described in the utility model above, and the wiring principle will not be repeated here.

When the gas detector supporting the detection of multiple gases in this embodiment is in use, the algorithm information for detecting different gases stored in the memory 24 is called by the controller 1 to change the measurement accuracy and measurement range of the programmable gas sensor chip 22, so that It is suitable for the detection of different gases. The programmable gas sensor chip 22 detects and feeds back the detection signal to the controller 1 through the sensor link module 21. Compared with traditional gas detectors, it can detect different gases using different algorithms. Improve the detectable range of the detector for different gas types, which is easy to use.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the utility model Under the premise of the spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A gas detector supporting multiple gas detection, characterized in that, comprising: a controller (1) and at least one sensor module (2); the sensor module (2) includes: a sensor link module ( 21), programmable gas sensor chip (22), sensor interface (23) and memory (24); wherein, The three groups of signal input ends of the sensor link module (21) are respectively connected to the CO contact, W0 contact and R0 contact of the programmable gas sensor chip (22), and the sensor link module (21) The signal output terminal is connected to the SIG_TOX pin of the controller (1); The two groups of signal input terminals of the sensor interface (23) are respectively connected to the SCL pin and the SDA pin of the controller (1), and the three groups of signal output terminals of the sensor interface (23) are respectively connected to the programmable CO contact, W0 contact and R0 contact of gas sensor chip (22); The memory (24) is connected to the programmable gas sensor chip (22), and is used for storing algorithm information for detecting multiple different gases. 2. The gas detector supporting multi-gas detection according to claim 1, characterized in that: the controller (1) is also connected with a battery module (3) for powering it. 3. The gas detector supporting multi-gas detection according to claim 1, characterized in that: the controller (1) is also connected with a temperature measurement module (4) for measuring the ambient temperature of the gas to be detected. 4. The gas detector supporting multi-gas detection according to claim 3, characterized in that: the temperature measurement module (4) is a temperature sensor. 5. The gas detector supporting multi-gas detection according to claim 1, characterized in that: the controller (1) is also connected with a communication module (5) for transmitting gas detection data. 6. The gas detector supporting multi-gas detection according to claim 5, characterized in that: the communication module (5) is an infrared receiving transmitter. 7. The gas detector supporting multi-gas detection according to claim 5, characterized in that: the controller (1) is also connected with an acousto-optic vibration alarm ( 6).

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