Multi-channel temperature acquisition system

Abstract

The utility model provides a multi-channel temperature acquisition system. The multi-channel temperature acquisition system comprises a control module, a multi-channel expansion module, a selection control module and a plurality of data acquisition modules, each data acquisition module is electrically connected with the control module through the multi-path expansion module, and the data acquisition modules are at least used for acquiring temperature data; the selection control module is connected with the control module and is used for setting the working mode of each data acquisition module; and the control module controls the working mode of the data acquisition module through the multipath expansion module according to the set working mode, and is used for setting temperature acquisition parameters and processing temperature data. According to the multi-channel temperature acquisition system provided by the embodiment of the invention, a large number of temperature sensors can be conveniently managed.

Description

Technical Field

[0001] The present application belongs to the field of temperature detection technology, and more specifically, relates to a multi-channel temperature acquisition system. Background Art

[0002] Various heating equipment and reactor equipment widely used in various types of enterprises require strict temperature control. Even industrial production activities that are not directly related to temperature often require temperature detection, such as battery production. The requirements for temperature acquisition systems in various industries are constantly increasing to meet the safety requirements of equipment environment and production processes. In order to meet the needs of production, temperature acquisition systems are also constantly developing.

[0003] As the number of temperature sensors increases, the industry's control over temperature becomes more precise. However, due to the excessive number of temperature sensors, the wiring of temperature sensors becomes more confusing, making it more difficult for users to manage device temperature. Utility Model Content

[0004] The embodiment of the present application provides a multi-channel temperature acquisition system, which is convenient for managing a large number of temperature sensors.

[0005] The technical solution adopted in the embodiment of the present application is: to provide a multi-channel temperature acquisition system, including a control module, a multi-channel expansion module, a selection and control module and multiple data acquisition modules;

[0006] Each of the data acquisition modules is electrically connected to the control module via the multi-channel expansion module, and the data acquisition module is at least used to collect temperature data;

[0007] The selection and control module is connected to the control module and is used to set the working mode of each data acquisition module;

[0008] The control module adjusts the working mode of the data acquisition module through the multi-channel expansion module according to the set working mode.

[0009] Furthermore, the selection and control module is a multi-bit binary dip switch, among which two dip switches control the working mode of the data acquisition module, and the remaining dip switches distinguish different data acquisition modules.

[0010] Further, the multi-bit binary DIP switch includes a plurality of switches, each of which includes a first pin and a second pin;

[0011] A first pin and a second pin of one of the switches are respectively connected to two input pins of the control module;

[0012] The first pins of the remaining switches are grounded, and the second pins are connected to the input pins of the control module.

[0013] Furthermore, the data acquisition module is also used to collect stress data.

[0014] Furthermore, the data acquisition module includes a temperature-sensitive resistor.

[0015] Furthermore, it also includes a data storage module, which is connected to the control module and is used to store the signals collected by the data collection module.

[0016] Furthermore, it also includes a communication module, and the control module communicates with the host computer through the communication module.

[0017] Furthermore, the communication module includes an RS485 / 232 communication module and / or a CAN communication module.

[0018] The beneficial effect of the multi-channel temperature acquisition system provided in the embodiment of the present application is that a multi-channel expansion module and multiple data acquisition modules are set in the multi-channel temperature acquisition system in the embodiment of the present application, the data acquisition module can collect temperature data, and multiple data acquisition modules are connected to the control module through the multi-channel expansion module, which greatly simplifies the connection lines, and the working mode of each data acquisition module can be set by selecting the control module, thereby facilitating personnel to manage a large number of data acquisition modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A connection block diagram of a multi-channel temperature acquisition system provided in an embodiment of the present application;

[0021] Figure 2 A circuit diagram of a selection control module provided in an embodiment of the present application.

[0022] Among them, the reference numerals in the figure are:

[0023] 10. Control module; 20. Multi-channel expansion module; 30. Select control module; 31. First pin; 32. Second pin; 40. Data acquisition module; 50. Data storage module; 60. Communication module; 61. RS485 / 232 communication module; 62. CAN communication module; 70. Host computer. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figure 1 The multi-channel temperature acquisition system provided by the embodiment of the present application is now described. The multi-channel temperature acquisition system provided by the embodiment of the present application includes a control module 10, a multi-channel expansion module 20, a selection and control module 30 and a plurality of data acquisition modules 40.

[0029] Each data acquisition module 40 is electrically connected to the control module 10 through the multi-channel expansion module 20, and the data acquisition module 40 is at least used to collect temperature data. Multiple data acquisition modules 40 are first connected to the same multi-channel expansion module 20, and then the multi-channel expansion module 20 is connected to the control module 10. In this way, the connection lines between the control module 10 and the data acquisition module 40 can be greatly reduced, which is convenient for subsequent maintenance and management. Each data acquisition module 40 is simultaneously connected to the control module 10 through the multi-channel expansion module 20, and the control module 10 can receive the temperature data collected by each data acquisition module.

[0030] The data acquisition module 40 is at least used to collect temperature data. After being connected to the control module 10, the collected temperature data can be transmitted to the control module 10, and the control module 10 processes the data. In addition, the data acquisition module 40 is also used to collect stress data. Specifically, the data acquisition module 40 includes a temperature-sensitive resistor, which is connected to the detection target to detect the temperature of the target, and when the target is subjected to stress, the resistance value of the temperature-sensitive resistor also changes, so that the stress change can be detected and stress data can be collected.

[0031] Reference Figure 1 , select the control module 30 to be connected with the control module 10, and set the working mode of each data acquisition module 40. Since there is only one control module 30 to be selected, and there are multiple data acquisition modules 40, only one can be set at a time during setting. The operator can set which data acquisition module 40 is connected to the multi-channel expansion module 20 by selecting the control module 30, and can set a certain data acquisition module 40 to be connected to the multi-channel expansion module 20, control the connection between the data acquisition module 40 and the multi-channel expansion module 20, and control the working mode of the data acquisition module 40, which can be a normal working mode, a timer switch mode, a closed mode, etc. After setting the data acquisition module 40 to be connected with the control module 10, the data acquisition module 40 can transmit the collected temperature data to the control module 10 through the multi-channel expansion module 20.

[0032] The control module 10 controls the working mode of the data acquisition module 40 through the multi-channel expansion module 20 according to the set working mode. After the operation of the selection control module 30 is performed by the operator and the corresponding settings are made, the control module 10 can control the multi-channel expansion module 20 according to the settings to make it consistent with the settings and process the transmitted data. Specifically, the control module 10 is an MCU control module 10.

[0033] Based on the above structure, multiple data acquisition modules 40 are connected to the control module 10 through the multi-channel expansion module 20, which greatly simplifies the connection lines. In addition, the control module 30 can be selected to set the connection between the multi-channel expansion module 20 and a designated data acquisition module 40 and control the working mode of the data acquisition module 40, thereby facilitating personnel to manage a large number of data acquisition modules 40.

[0034] Reference Figure 1 and Figure 2, the control module 30 is selected to be a multi-bit binary dial switch. Among the multi-bit binary dial switches, two of the dial switches control the working mode of the data acquisition module 40, and the remaining dial switches distinguish different data acquisition modules 40. In the multi-bit binary dial switch, there are multiple switches, each of which has two states, namely, on and off (i.e., 1 and 0). Two of the switches control the working mode of the data acquisition module 40, and the other switches are used to correspond to different data acquisition modules 40, that is, each data acquisition module 40 corresponds to a group of binary numbers. By controlling the dial switch to make it the same as the binary number of the corresponding data acquisition module 40, the working mode of this data acquisition module 40 can be set. It can be understood that the multi-bit binary dial switch is at least 2 bits and can match at least two data acquisition modules 40. In some embodiments, it is an eight-bit binary dial switch.

[0035] Reference Figure 2 The multi-bit binary dial switch includes a plurality of switches, each of which includes a first pin 31 and a second pin 32; the first pin 31 and the second pin 32 of one of the switches are respectively connected to two input pins of the control module 10; the first pin 31 of the remaining switches is grounded, and the second pin 32 is connected to the input pin of the control module 10. That is, by connecting the multi-bit binary dial switch to the input pin of the control module 10, the input to the control module 10 is realized. Different connection modes of the first pin 31 and the second pin 32 correspond to different functions of the dial switch, such as setting of the working mode and address setting of the data acquisition module 40.

[0036] Reference Figure 1 The multi-channel temperature acquisition system further includes a data storage module 50, which is connected to the control module 10 and is used to store the signal collected by the data acquisition module 40. That is, the collected temperature data is stored by the data storage module 50 for subsequent use. Specifically, the data storage module 50 can be a shift register.

[0037] Reference Figure 1 The multi-channel temperature acquisition system also includes a communication module 60, through which the control module 10 communicates with the host computer 70 to upload the collected data and receive the commands issued by the host computer 70. Specifically, the communication module 60 includes an RS485 / 232 communication module 61 and / or a CAN communication module 62. The RS485 / 232 communication module 61 is used for the system to communicate with the host computer 70, supports the modbus protocol, and receives and processes the commands issued by the host computer 70 in real time. The CAN communication module 62 is used for the system to communicate with the host computer 70 to ensure the timeliness of the sampling data and to ensure the smoothness of the communication link between the system and the host computer 70 as much as possible.

[0038] In addition, the multi-channel temperature acquisition system also includes a power module and a surge protection module. The power module is connected to the control module 10 through the surge protection module to power the entire system. The main function of the power module is to convert the voltage supplied by the external power supply into the voltage required for the system to work, and the main function of the surge protection module is to prevent voltage fluctuations caused by changes in the external environment from causing damage to the equipment.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A multi-channel temperature acquisition system, characterized in that: It includes a control module, a multi-channel expansion module, a selection control module and multiple data acquisition modules; Each of the data acquisition modules is electrically connected to the control module via the multi-channel expansion module, and the data acquisition module is at least used to collect temperature data; The selection and control module is connected to the control module and is used to set the working mode of each data acquisition module; The control module adjusts the working mode of the data acquisition module through the multi-channel expansion module according to the working mode.

2. The multi-channel temperature acquisition system according to claim 1, characterized in that: The selection and control module is a multi-bit binary dip switch. Among the multi-bit binary dip switches, two of the dip switches control the working mode of the data acquisition module, and the remaining dip switches distinguish different data acquisition modules.

3. The multi-channel temperature acquisition system according to claim 2, characterized in that: The multi-bit binary DIP switch comprises a plurality of switches, each of which comprises a first pin and a second pin; A first pin and a second pin of one of the switches are respectively connected to two input pins of the control module; The first pins of the remaining switches are grounded, and the second pins are connected to the input pins of the control module.

4. The multi-channel temperature acquisition system according to claim 1, characterized in that: The data acquisition module is also used to collect stress data.

5. The multi-channel temperature acquisition system according to claim 4, characterized in that: The data acquisition module includes a temperature-sensitive resistor.

6. The multi-channel temperature acquisition system according to claim 1, characterized in that: It also includes a data storage module, which is connected to the control module and is used to store the signals collected by the data collection module.

7. The multi-channel temperature acquisition system according to claim 1, characterized in that: It also includes a communication module, and the control module communicates with the host computer through the communication module.

8. The multi-channel temperature acquisition system according to claim 7, characterized in that: The communication module includes an RS485 / 232 communication module and / or a CAN communication module.

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