Contact type and non-contact type integrated digital temperature measuring device
By designing a digital temperature measurement device combining contact and non-contact temperature measurement technology, the problem of inability to meet multiple application scenarios in the prior art is solved, and the flexibility and accuracy of the measurement device are achieved.
Patent Information
- Application Number
- CN202422216892.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The lack of devices combining contact and non-contact temperature measurement technologies in the prior art cannot meet the needs of multiple application scenarios.
A contact-type and contactless integrated digital temperature measurement device is designed, including a housing, a temperature measurement module, a control module, a display module and a matrix keyboard module, and the contact-type and contactless temperature measurement modes are switched through the matrix keyboard module.
It realizes temperature measurement in multiple application scenarios for the objects to be tested, and can meet different needs by switching temperature measurement modes, improving the flexibility and accuracy of measurement.
Smart Images
Figure CN222993854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of digital temperature measurement devices, in particular to an integrated digital temperature measurement device combining contact type and non-contact type. Background Art
[0002] With the rapid development of technology and the continuous increase in people's demands for the quality of life and work efficiency, accurate, real-time, and non-destructive temperature measurement is particularly important in many fields such as industrial manufacturing, chemical processes, energy management, material manufacturing, environmental monitoring, biological reproduction, disease diagnosis and treatment, food safety, and health monitoring. Moreover, due to different measurement objects and environments, different temperature measurement methods need to be selected to obtain temperature data. For example, in medical applications, non-contact temperature measurement is required to avoid cross-infection, and contact temperature measurement is relied on to obtain accurate body temperature data.
[0003] However, in the prior art, there are contact temperature measurement devices that rely on contact temperature measurement to obtain temperature data, and non-contact temperature measurement devices that avoid obtaining temperature data by contact temperature measurement methods, but there is a lack of a device that combines two different temperature measurement technologies to meet diverse application scenarios. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art and provide an integrated digital temperature measurement device combining contact type and non-contact type, including a housing, a temperature measurement module for collecting temperature signals of an object to be measured, a control module for converting analog temperature signals into digital temperature signals, a display module for displaying temperature data, and a matrix keyboard module;
[0005] The temperature measurement module, the display module, and the matrix keyboard module are all arranged on the housing, the control module is arranged inside the housing, the temperature measurement module includes a contact temperature measurement module and a non-contact temperature measurement module, and the control module switches to a contact temperature measurement mode or a non-contact temperature measurement mode according to the state of the matrix keyboard module.
[0006] Preferably, it includes a time module with time recording function, the time module outputs a time signal to the control module, and the control module displays the time signal on the display module.
[0007] Preferably, the matrix keyboard module includes a time setting module, and the time setting module changes the clock, minutes, and seconds recorded by the time module through the control module.
[0008] Preferably, the time setting module includes a time selection button, a time setting button, a time increment button, and a time decrement button. The time selection button is used to select the type of set time; the time setting button is used to confirm the set time and display it on the display module.
[0009] Preferably, the time module has a first power port and a second power port for backup, and the power port of the contact temperature measurement module is connected to the first power supply and the second power supply; the control module is a controller of the STC series.
[0010] Preferably, it includes a temperature warning threshold module, and the temperature warning threshold module is used to set the highest temperature threshold and the lowest temperature threshold.
[0011] Preferably, it includes a storage module, the storage module is electrically connected to the control module, and the storage module stores temperature data.
[0012] Preferably, it includes an alarm module. When the temperature data exceeds the highest temperature threshold or is lower than the lowest temperature threshold, the alarm module is activated.
[0013] Preferably, it includes a protective cover detachably connected to the temperature measurement module and a chain for connecting the protective cover and the housing.
[0014] Preferably, it includes an automatic calibration module. The automatic calibration module is electrically connected to the control module. The automatic calibration module includes a calibration button, a memory, a comparison module, and a compensation calibration module. The contact temperature measurement module is arranged on the housing, and the non-contact temperature measurement module is arranged inside the housing, and there is a certain distance between the non-contact temperature measurement module and the contact temperature measurement module in the horizontal direction;
[0015] The control module judges whether the control module is in the calibration mode according to the state of the calibration button;
[0016] When the control module is in the calibration mode, the contact temperature measurement module and the non-contact temperature measurement module measure the temperature simultaneously and output the contact temperature value and the non-contact temperature value, and the control module stores the contact temperature value and the non-contact temperature value in the storage module;
[0017] The comparison module is used to judge whether the compensation calibration module performs calibration according to the comparison result between the difference between the contact temperature value and the non-contact temperature value and the set error range;
[0018] When the difference is outside the error range, the compensation calibration module uses the contact temperature value as the comparison temperature and the non-contact temperature value as the calibration temperature, and the compensation calibration module automatically calibrates the non-contact temperature module according to the difference.
[0019] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple, and it has two temperature measurement methods, namely contact type and non-contact type. A simulated temperature signal is obtained by measuring the temperature of the object to be measured. The control module converts the simulated temperature signal into a digital temperature signal and digitally displays it on the display module. During the use process, the present utility model can be switched to the contact temperature measurement mode or the non-contact temperature measurement mode through the matrix keyboard module, thereby realizing multiple application scenarios. Brief Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present utility model.
[0021] Figure 1 It is the circuit diagram of the present utility model;
[0022] Figure 2 It is the principle block diagram of the contact temperature measurement module of the present utility model;
[0023] Figure 3 It is the principle block diagram of the non-contact temperature measurement module of the present utility model;
[0024] Figure 4 It is the principle block diagram of the time module of the present utility model;
[0025] Figure 5 It is the principle block diagram of the storage module of the present utility model;
[0026] Figure 6 It is the structural schematic diagram of the present utility model;
[0027] Figure 7 It is the structural schematic diagram of another angle of the present utility model;
[0028] In the figure, 1 - protective sleeve, 2 - outer shell, 3 - display module, 4 - matrix keyboard module, 5 - temperature measurement module, 51 - contact temperature measurement module, 52 - non-contact temperature measurement module, 6 - chain. Detailed Embodiment
[0029] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will further describe the present utility model in detail with reference to the drawings.
[0030] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are for distinguishing two entities or parameters with the same name but different identities. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.
[0031] The directional and positional terms mentioned in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only with reference to the directions or positions in the attached drawings. Therefore, the directional and positional terms used are for explaining and understanding the present utility model, rather than a limitation on the protection scope of the present utility model.
[0032] As Figures 1 to 7 shown, in the embodiment of the present utility model, the contact and non-contact integrated digital temperature measuring device includes a housing 2, a temperature measuring module 5 for collecting temperature signals of the temperature measuring object, a control module for converting the temperature signals collected by the temperature measuring module 5 into temperature data through analog-to-digital conversion, a display module 3 for displaying the temperature data, and a matrix keyboard module 4;
[0033] The temperature measuring module 5, the display module 3, and the matrix keyboard module 4 are all arranged on the housing 2, the control module is arranged inside the housing 2, the temperature measuring module 5 includes a contact temperature measuring module 51 and a non-contact temperature measuring module 52, and the control module switches the control module to the contact temperature measuring mode or the non-contact temperature measuring mode according to the state of the judgment matrix keyboard module 4.
[0034] It can be understood that the contact temperature measuring module 51 uses a thermistor to obtain a temperature signal such as the resistance value of the resistor, then performs analog-to-digital conversion on the temperature signal to obtain a digital signal, performs data processing (analog-to-digital conversion) through the control module to obtain the required temperature data, and then displays it through the display module 3. The thermistor reflects the external temperature change according to the element with temperature characteristics. The present utility model uses a thermistor to reflect the external temperature change. In addition to the thermistor, a thermocouple, a platinum resistor, and a semiconductor PN junction temperature sensor can also be used to measure the temperature signal of the object. The chip used in the contact temperature measuring module 51 in the present utility model is DS18B20.
[0035] The non-contact temperature measuring module 52 uses an infrared detector, or can also use an element that can detect the infrared radiation emitted by an object to measure and obtain a temperature signal such as the infrared radiation amount of the object, then performs analog-to-digital conversion on the temperature signal to obtain a digital signal, performs data processing through analog-to-digital conversion to obtain the required temperature data, and then displays it through the display module 3. The chip used in the non-contact temperature measuring module 52 in the present utility model is MLX90614.
[0036] The matrix keyboard module 4 converts the contact temperature measurement module 51 and the non-contact temperature measurement module 52 with each other by means of buttons. It can be understood that other methods can also be used to switch between the contact temperature measurement module 51 and the non-contact temperature measurement module 52. For example, electronic components with switching properties such as transistors, field effect transistors, and relays.
[0037] This utility model uses an LCD1602 type liquid crystal display.
[0038] It includes a time module with time recording function. The time module outputs a time signal to the control module, and the control module displays the time signal on the display module 3. In this utility model, the chip used in the time module is DS1302.
[0039] The matrix keyboard module 4 includes a set time module, and the set time module changes the clock, minutes, and seconds recorded by the time module through the control module.
[0040] The set time module includes a select time button, a set time button, a time plus button, and a time minus button. The select time button is used to select the set time type; the set time button is used to confirm the set time and display it on the display module 3.
[0041] The matrix keyboard module 4 includes a temperature warning threshold module, and the temperature warning threshold module is used to set the maximum temperature threshold and the minimum temperature threshold.
[0042] It includes a storage module. The storage module is electrically connected to the control module, and the storage module stores temperature data. In this utility model, the chip used in the storage module is AT24C02.
[0043] It includes an alarm module. When the temperature data exceeds the maximum temperature threshold or is lower than the minimum temperature threshold, the alarm module is activated.
[0044] The time module has a first power supply port and a second power supply port for backup. The power supply port of the contact temperature measurement module 51 is connected to the first power supply and the second power supply. It can be understood that it can effectively improve the stability, data integrity, and reliability of the system to cope with various possible power anomalies.
[0045] The alarm module is a buzzer.
[0046] The control module is a controller of the STC series; in this utility model, the controller is STC89C52.
[0047] It includes a protective cover 1 detachably connected to the temperature measurement module 5 and a chain 6 for connecting the protective cover 1 and the housing 2. It can be understood that the protective cover 1 can avoid the problem that the temperature measurement module 5 is damaged when the present utility model drops, and the chain 6 provided between the protective cover 1 and the housing 2 can prevent the protective cover 1 from being lost.
[0048] It includes an automatic calibration module. The automatic calibration module is electrically connected to the control module. The automatic calibration module includes a calibration button, a memory, a comparison module, and a compensation calibration module. The contact temperature measurement module 51 is arranged on the housing 2, and the non-contact temperature measurement module 52 is arranged inside the housing 2, and the non-contact temperature measurement module 52 is arranged at a certain distance from the contact temperature measurement module 51 in the horizontal direction;
[0049] The control module determines whether the control module is in the calibration mode according to the state of the calibration button;
[0050] When the control module is in the calibration mode, the contact temperature measurement module 51 and the non-contact temperature measurement module 52 measure the temperature simultaneously and output a contact temperature value and a non-contact temperature value, and the control module stores the contact temperature value and the non-contact temperature value in the storage module;
[0051] The comparison module is used to judge whether the compensation calibration module performs calibration according to the comparison result between the difference between the contact temperature value and the non-contact temperature value and the set error range;
[0052] When the difference is outside the error range, the compensation calibration module takes the contact temperature value as the comparison temperature and the non-contact temperature value as the calibration temperature, and the compensation calibration module automatically calibrates the non-contact temperature module according to the difference.
[0053] It can be understood that when the control module is in the calibration mode, the contact temperature measurement module 51 and the non-contact temperature measurement module 52 can measure the temperature of the same object to be measured, and even when the contact temperature measurement module 51 is close to the object to be measured, the non-contact temperature measurement module 52 is also at a certain distance from the object to be measured.
[0054] In this embodiment, the temperature data measured by the contact temperature measurement module 51 is accurate data, and the compensation calibration module compensates and calibrates the non-contact temperature measurement module 52 by using this temperature data as the comparison temperature or the actual temperature, improving the accurate measurement of the temperature measurement module 5.
[0055] Those of ordinary skill in the art can understand that all or part of the steps in implementing the method of the above embodiment can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, disk, optical disc, etc.
[0056] The above-disclosed are only the preferred embodiments of the present utility model, and of course, the scope of rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.
[0057] It should be noted that the embodiments of the present utility model can be implemented through hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated designed hardware. Those skilled in the art can understand that the above devices and methods can be implemented using computer-executable instructions and / or included in processor control code, for example, such code is provided on a programmable memory or a data carrier such as an optical or electronic signal carrier.
[0058] In addition, although the operations of the method of the present utility model are described in a specific order in the drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. On the contrary, the order of execution of the steps depicted in the flowchart can be changed. Additionally or alternatively, some steps can be omitted, multiple steps can be combined into one step for execution, and / or one step can be decomposed into multiple steps for execution. It should also be noted that the features and functions of two or more devices according to the present utility model can be embodied in one device. Conversely, the features and functions of one device described above can be further divided and embodied by multiple devices.
[0059] Although the present utility model has been described with reference to several specific embodiments, it should be understood that the present utility model is not limited to the specific embodiments disclosed. The present utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims
1. A contact and non-contact integrated digital temperature measuring device, characterized in that: It comprises a housing (2), a temperature measuring module (5) for collecting a temperature signal of an object to be measured, a control module for converting an analog temperature signal into a digital temperature signal, a display module (3) for displaying temperature data, and a matrix keyboard module (4); The temperature measurement module (5), the display module (3) and the matrix keyboard module (4) are all arranged on the housing (2); the control module is arranged inside the housing (2); the temperature measurement module (5) comprises a contact temperature measurement module (51) and a non-contact temperature measurement module (52); and the control module switches to a contact temperature measurement mode or a non-contact temperature measurement mode according to the state of the matrix keyboard module (4).
2. The contact and non-contact integrated digital temperature measuring device according to claim 1, characterized in that: It comprises a time module for recording time, the time module outputs a time signal to a control module, and the control module displays the time signal on a display module (3).
3. The contact and non-contact integrated digital temperature measuring device according to claim 2, characterized in that: The matrix keyboard module (4) comprises a time setting module, and the time setting module changes the clock, minute and second recorded by the time module through the control module.
4. The contact and non-contact integrated digital temperature measuring device according to claim 3, characterized in that: The time setting module comprises a time selection button, a time setting button, a time plus button and a time minus button. The time selection button is used to select a set time type; the time setting button is used to determine the set time and display it on the display module (3).
5. The contact and non-contact integrated digital temperature measuring device according to claim 4, characterized in that: The time module has a first power port and a second power port for backup, and the power port of the contact temperature measurement module (51) is connected to the first power supply and the second power supply; the control module is a controller of the STC series.
6. The contact and non-contact integrated digital temperature measuring device according to claim 1, characterized in that: A temperature warning threshold module is included, and the temperature warning threshold module is used to set a maximum temperature threshold and a minimum temperature threshold.
7. The contact and non-contact integrated digital temperature measuring device according to claim 1, characterized in that: It includes a storage module, which is electrically connected to the control module and stores temperature data.
8. The contact and non-contact integrated digital temperature measuring device according to claim 1, characterized in that: An alarm module is included, and when the temperature data exceeds a maximum temperature threshold or is lower than a minimum temperature threshold, the alarm module is activated.
9. The contact and non-contact integrated digital temperature measuring device according to claim 1, characterized in that: It comprises a protective cover (1) detachably connected to a temperature measurement module (5) and a chain (6) used for connecting the protective cover (1) and an outer shell (2).
10. The contact and non-contact integrated digital temperature measuring device according to claim 1, characterized in that: The automatic calibration module comprises an automatic calibration module, the automatic calibration module is electrically connected to the control module, the automatic calibration module comprises a calibration button, a memory, a comparison module and a compensation calibration module, the contact temperature measurement module (51) is arranged on the housing (2), the non-contact temperature measurement module (52) is arranged in the housing (2), and the non-contact temperature measurement module (52) and the contact temperature measurement module (51) are arranged at a certain distance in the horizontal direction; The control module determines whether the control module is in a calibration mode according to the state of the calibration button; When the control module is in a calibration mode, the contact temperature measurement module (51) and the non-contact temperature measurement module (52) simultaneously measure the temperature and output a contact temperature value and a non-contact temperature value, and the control module stores the contact temperature value and the non-contact temperature value in the storage module; The comparison module is used to determine whether the compensation calibration module is calibrated according to the comparison result between the difference between the contact temperature value and the non-contact temperature value and the set error range; When the difference is outside the error range, the compensation calibration module uses the contact temperature value as the comparison temperature and the non-contact temperature value as the calibration temperature, and the compensation calibration module automatically calibrates the non-contact temperature module according to the difference.