CN214704446U - Non-contact distributed temperature control system - Google Patents
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- CN214704446U CN214704446U CN202121359009.3U CN202121359009U CN214704446U CN 214704446 U CN214704446 U CN 214704446U CN 202121359009 U CN202121359009 U CN 202121359009U CN 214704446 U CN214704446 U CN 214704446U
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Abstract
The utility model relates to the technical field of electronic measurement and control, in particular to a non-contact distributed temperature control system, which comprises a temperature measuring device, wherein the temperature measuring device comprises a base, and a temperature measuring circuit board is tiled on the base; one corner of the base is fixedly connected with a supporting rod, and one end of the supporting rod is connected with a temperature measuring sensor; the temperature control device comprises a plurality of temperature control sub-devices which are distributed, and each temperature control sub-device comprises a bottom plate and a temperature control circuit board which is paved on the bottom plate; the temperature measuring device is in wireless communication connection with the temperature control sub-device; the real-time temperature of the temperature measuring dinner plate of the infrared temperature measuring sensor is compared with a set temperature threshold value, and the judged data is transmitted to the temperature control wireless communication modules of the temperature control devices through the temperature measurement wireless communication modules, so that the aim of measuring temperature at one position and controlling temperature at multiple positions is fulfilled.
Description
Technical Field
The disclosure relates to the technical field of electronic measurement and control, in particular to a non-contact distributed temperature control system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the continuous improvement of living standard, people pay more and more attention to the health of food and drink. In catering places such as students/staff restaurants or restaurants, cooked meals are usually cooled, and the current situation is more obvious particularly in cold seasons; however, the independent heating of the eaters is time-consuming and labor-consuming, and the eaters may need to queue up to take the dining time when many people are in use, but the direct eating may cause discomfort, which brings hidden troubles to the health of people. How to realize the automatic and convenient temperature control function of a large amount of prepared meals has important practical value.
According to investigation and reference data, most of the current restaurants are provided with a large water tank below a dinner plate for containing dishes, and then a large amount of hot water is poured into the water tank to keep the temperature of the dinner plate, so that the temperature of the hot dishes is slowly reduced, and the functions of measuring the temperature of the dishes and heating the dishes are not provided.
In the investigation, for example, the time for students to buy lunch in a student restaurant is about one hour, the time for buying lunch in a centralized way after class also needs more than half an hour, the water temperature is gradually reduced along with the increase of time, and the speed for cooling the meal in the dinner plate on which the meal just taken out of the pot is placed on the same water tank is also higher. Meanwhile, a large amount of hot water is required each time, and waste of water resources is caused.
Therefore, a device for monitoring the temperature of a meal plate of a restaurant in real time and controlling the temperature to be constant is needed to solve the problem that the temperature of dishes in the restaurant cannot be kept.
SUMMERY OF THE UTILITY MODEL
For the not enough of problem and prior art who exists more than overcoming, the utility model provides a non-contact distributed temperature control system not only can accomplish the real-time temperature measurement to the measured object article, can accomplish the heating function according to user setting's minimum temperature value control ceramic heating piece simultaneously to the design of constant temperature function has been reached.
According to some embodiments, the utility model provides a non-contact distributed temperature control system adopts following technical scheme:
a non-contact distributed temperature control system comprising:
the temperature measuring device comprises a base, wherein a temperature measuring circuit board is tiled on the base; one corner of the base is fixedly connected with a supporting rod, and one end of the supporting rod is connected with a temperature measuring sensor;
the temperature control device comprises a plurality of temperature control sub-devices which are arranged in a distributed manner, wherein each temperature control sub-device comprises a bottom plate and a temperature control circuit board which is paved on the bottom plate;
the temperature measuring device is in wireless communication connection with the temperature control sub-device.
As further technical limitation, the temperature measurement circuit board is connected with a temperature measurement main control chip, a layer of transparent acrylic plate is tiled on the temperature measurement circuit board, and a first ceramic heating sheet is fixed on the transparent acrylic plate.
As a further technical limitation, the temperature measurement main control chip is connected with a liquid crystal display circuit unit, and the liquid crystal display circuit unit is connected with a temperature threshold setting circuit unit through the temperature measurement main control chip;
the liquid crystal display circuit unit is communicated with the temperature measurement circuit unit through the temperature measurement main control chip, and the temperature measurement circuit unit acquires temperature measurement data of the temperature measurement sensor; the liquid crystal display circuit unit is electrically connected with the display screen; the display screen is fixedly connected to the supporting rod.
As a further technical limitation, the temperature measurement main control chip is connected with a temperature threshold setting circuit unit, and the temperature threshold setting circuit unit is connected with a temperature threshold addition and subtraction function key through the temperature measurement main control chip; the temperature threshold value addition and subtraction function key is tightly attached to the lower surface of the transparent acrylic plate above the temperature measurement circuit board;
the temperature measurement main control chip is connected with the heating function switch circuit unit, and the heating function switch circuit unit is connected with the heating switch function key through the temperature measurement main control chip; the heating switch function key is tightly attached to the lower surface of the transparent acrylic plate above the temperature measuring circuit board.
As a further technical limitation, the temperature measurement main control chip is connected with a temperature measurement wireless communication module;
the temperature measurement main control chip is connected with a first heating control circuit unit and a first relay respectively, and the first heating control circuit unit is electrically connected with a first ceramic heating sheet.
As further technical limitation, a temperature control main control chip is connected to the temperature control circuit board, a layer of transparent acrylic plate is tiled on the temperature control circuit board, and a second ceramic heating sheet is fixed on the transparent acrylic plate.
As a further technical limitation, the temperature measurement wireless communication module is connected with the temperature control wireless communication module, and the temperature control wireless communication module is arranged on the temperature control circuit board and connected with the temperature control main control chip.
As a further technical limitation, the temperature control main control chip is connected with a second relay through an I/O port.
As a further technical limitation, the temperature control main control chip is connected to a second heating control circuit unit, and the second heating control circuit unit is electrically connected to a second ceramic heating sheet.
As a further technical limitation, the temperature measurement circuit board and the temperature control circuit board are also provided with a power supply circuit unit.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses divide into a temperature measuring device and many places temperature regulating device with whole device, temperature measuring device's infrared temperature sensor is after the real-time temperature value who acquires the dinner plate, carries out the comparison with the heating temperature threshold value of settlement, then judges whether launch the heating function of ceramic heating piece to data after will judging transmit to each system temperature regulating device's accuse temperature wireless communication module through temperature measurement wireless communication module, thereby reach the purpose of the many places accuse temperature of a temperature measurement.
2. The utility model discloses a not only can accomplish the real-time temperature measurement to the measured object article, can accomplish the heating function according to the minimum temperature value control ceramic heating piece that the user set for simultaneously to the design of constant temperature function has been reached.
3. The utility model discloses a consider that there are a plurality of hot dish dinner plates that need to heat, adopted the functional design of the heating of a temperature measurement multiple spot when the design, effectively solved present most dining rooms and carrying out the problem that dish temperature can not be controlled when meal is sold, a whole set of system cost is cheap moreover, the installation is simple very suitable for using in the dining room, adopted touch type button in the aspect of the function button setting of device, the operation that has made things convenient for the user has increased the pleasing to the eye degree of device more, the science and technology of device is felt has been promoted.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
FIG. 1 is a diagram illustrating a structure of a temperature measuring device of a non-contact distributed temperature control system according to an embodiment;
FIG. 2 is a diagram illustrating a temperature control device of the non-contact distributed temperature control system according to an embodiment;
FIG. 3 is a schematic circuit diagram of a temperature measurement main control chip and a temperature control main control chip of the non-contact distributed temperature control system in the embodiment;
FIG. 4 is a schematic circuit diagram of a temperature measuring wireless communication module and a temperature controlling wireless communication module of the non-contact distributed temperature control system in the embodiment;
FIG. 5 is a schematic circuit diagram of a temperature measuring circuit unit of the non-contact distributed temperature control system in the embodiment;
FIG. 6 is a schematic diagram of an exemplary liquid crystal display circuit unit of the non-contact distributed temperature control system;
FIG. 7(a) is a schematic diagram of a temperature increase circuit of a temperature threshold setting circuit unit of the non-contact distributed temperature control system in the embodiment;
FIG. 7(b) is a schematic diagram of a temperature reduction circuit of the temperature threshold setting circuit unit of the non-contact distributed temperature control system in the embodiment;
FIG. 8 is a schematic circuit diagram of a first heating control circuit unit and a second heating control circuit unit of a non-contact distributed temperature control system in an embodiment;
FIG. 9 is a power supply circuit of the temperature measuring device and the temperature control device of the non-contact distributed temperature control system in the embodiment;
FIG. 10 is a diagram showing a power interface circuit of a temperature control device and a temperature measuring device of the non-contact distributed temperature control system in the embodiment;
FIG. 11 is a minimum system clock reset circuit of the temperature control device and the temperature measuring device of the non-contact distributed temperature control system in an embodiment;
FIG. 12 is a block diagram of the program download port circuits of the temperature control device and the temperature measurement device of the non-contact distributed temperature control system in an embodiment;
FIG. 13 is a system interface expansion circuit of the temperature control device and the temperature measuring device of the non-contact distributed temperature control system in the embodiment;
in the figure, 1-infrared temperature measurement sensor; 2-temperature measurement wireless communication module; 3-adding and subtracting function keys by using a temperature threshold; 4-a first ceramic heating plate; 5-temperature measuring circuit board; 6-a display screen; 7-joint structure; 8-a first relay; 9-temperature control wireless communication module; 10-a second ceramic heating plate; 11-a second relay; 12-a temperature control circuit board; 13-heating switch function button.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-13, a non-contact distributed temperature control system provided in embodiment 1 of the present invention includes a temperature measuring device and a temperature control device, wherein the temperature measuring device includes a base, an infrared temperature measuring sensor 1 and a display screen 6, and a temperature measuring circuit board 5 is tiled on the base; the temperature control device comprises a plurality of temperature control sub-devices which are distributed, and each temperature control sub-device comprises a bottom plate and a temperature control circuit board 12 which is paved on the bottom plate; the temperature measuring device is in wireless communication connection with the temperature control sub-device.
Specifically, one corner of the base is fixedly connected with a supporting rod, the supporting rod is rotatably connected with the infrared temperature measuring sensor 1 through a joint structure 7, a display screen 6 is fixedly connected in the middle of the supporting rod, the display screen 6 is electrically connected with the temperature measuring circuit board 5, and specifically, the display screen 6 is connected with a liquid crystal display circuit unit on the temperature measuring circuit board 5; a layer of transparent acrylic plate is paved on the temperature measuring circuit board 5, and a first ceramic heating sheet 4 is fixed on the transparent acrylic plate; a layer of transparent acrylic plate is laid on the temperature control circuit board 12, and a second ceramic heating plate 10 is fixed on the transparent acrylic plate; the acrylic material is used for decoration above the circuit board, so that the circuit board and the ceramic heating sheet have a certain spacing distance, and the circuit board is protected.
Specifically, a temperature measurement main control chip is arranged on the temperature measurement circuit board 5 and connected with a temperature measurement wireless communication module 2; a temperature control main control chip is arranged on the temperature control circuit board 12 and connected with a temperature control wireless communication module 9; the temperature measurement wireless communication module 2 and the temperature control wireless communication module 9 both adopt NRF24L01 wireless data transmission modules, and the temperature control devices of the device are multiple, so that the main task of the temperature measurement wireless communication module 2 and the temperature control wireless communication module 9 completed by the device is a 'one-sending-multiple-receiving' function. According to the data manual given by the NRF24L01 module official, if two wireless modules realize "one-to-one" transmission, it is necessary to set the address matching between the transmitting end and the receiving end, and at the same time, it is necessary to set the same frequency channel and communication frequency. According to the requirements, the addresses of NRF24L01 modules of all system temperature control devices are set to be the same through programming, and the frequency channel and the frequency of communication are kept the same, so that the task function of one-time-multiple-receiving of data can be completed. The temperature measurement circuit board 5 of the temperature measurement device acquires temperature measurement data of the infrared temperature measurement sensor 1 to judge whether to start a heating function, then data to be sent are firstly coded, then the temperature measurement wireless communication module 2 is controlled to send the data, the temperature measurement device firstly decodes the data after receiving the data through the temperature measurement wireless communication module 9, and the second ceramic heating plate 10 is started to heat according to the received data.
Specifically, the temperature measurement main control chip is connected with a temperature threshold value setting circuit unit, and the temperature threshold value setting circuit unit is connected with a temperature threshold value adding and subtracting function key 3 through the temperature measurement main control chip; the temperature threshold value plus-minus function key 3 is tightly attached to the lower surface of the transparent acrylic plate above the temperature measuring circuit board 5; the temperature measurement main control chip is connected with the heating function switch circuit unit, and the heating function switch circuit unit is connected with the heating switch function key 13 through the temperature measurement main control chip; the heating switch function key is tightly attached to the lower surface of the transparent acrylic plate above the temperature measuring circuit board; the two kinds of function keys mainly adopt HTTM capacitive touch switch keys, the temperature threshold value plus-minus function key 3 and the heating switch function key 13 are respectively positioned on the left side and the lower side of the temperature measuring circuit board, function adjustment can be completed only by touching the function switch which needs to be set at each time, the number of the function keys is three, and the function keys are respectively the increase and the decrease of the temperature threshold value and the function design of the keys for opening the heating function.
The communication mode of the temperature threshold adding and subtracting function key 3 and the temperature threshold adding and subtracting circuit is direct connection, namely the output port of the temperature threshold adding and subtracting function key 3 is directly connected with the I/O port of the singlechip; the specific process comprises the following steps: when the temperature threshold value plus-minus function key is pressed down, the output port of the temperature threshold value plus-minus function key 3 can output high level, when the I/O port of the single chip microcomputer detects that the high level is detected, the temperature threshold value plus-minus function key is pressed down, and then the single chip microcomputer sets the size of the temperature threshold value variable according to the high-low level state of the corresponding I/O port.
The switch of the heating switch function key 13 is a switch for determining the heating function of the temperature measuring device and also comprises a function for controlling the heating function of the temperature measuring device; the heating switch function key 13 is in direct connection with the heating function switch circuit, namely, the output port of the heating switch function key 13 is directly connected with the I/O port of the single chip microcomputer. The automatic heating function is performed when the heating switch function key is pressed 13, otherwise the system does not start the automatic heating function all the time.
Specifically, the temperature measurement main control chip is connected with a liquid crystal display circuit unit, and the liquid crystal display circuit unit is communicated with the temperature threshold setting circuit unit through the temperature measurement main control chip and is sent to the display screen 6 to display the set temperature threshold; meanwhile, the liquid crystal display circuit unit is communicated with the temperature measurement circuit unit through a temperature measurement main control chip, the temperature measurement circuit unit acquires temperature measurement data of the infrared temperature measurement sensor and transmits the temperature measurement data to the temperature measurement main control chip, the temperature measurement main control chip sends the temperature measurement data to the liquid crystal display circuit unit, and the liquid crystal display circuit unit sends the acquired temperature measurement data to the display screen 6 to display real-time temperature measurement data; the temperature measurement main control chip is also connected with a program downloading port circuit, a power supply interface circuit and a minimum system clock reset circuit.
The display screen 6 adopts an OLED liquid crystal display screen, and a temperature measurement main control chip in the temperature measurement circuit board is communicated with the OLED liquid crystal display screen through a liquid crystal display circuit unit; can use OLED liquid crystal display to look over the real-time temperature of testee and the threshold value of settlement this moment, the opening and the closed condition of the second ceramic heating piece 10 that shows first ceramic heating piece 4 and show temperature regulating device simultaneously, wherein second ceramic heating piece 10 specifically realizes through the communication of temperature measurement wireless communication module and accuse temperature wireless communication module 2, the state of the second ceramic heating piece of temperature regulating device is transmitted for accuse temperature wireless communication module through accuse temperature main control chip, accuse temperature wireless communication module transmits for temperature measurement wireless communication module.
Specifically, the infrared temperature sensor 1 adopts the MLX90614 module, and the height of the supporting rod can be designed according to the infrared temperature measuring modules of different versions due to the use of different versions of the MLX90614 module, so that the measured temperature value is more accurate; in the aspect of circuit design, the SCL pin and the SDA pin of the MLX90614 module are connected with the P2.6 pin and the P2.7 pin of a temperature measurement main control chip singlechip of a temperature measurement circuit board, and the communication mode of the module and the singlechip is I2C, communication, only need to compile according to the data manual that sensor official states gave.
In this embodiment, the temperature measurement main control chip is connected to the first relay 8 through the I/O port, the temperature control main control chip is connected to the second relay through the I/O port, and the temperature measurement main control chip controls the first relay 8 to be attracted and disconnected through the I/O port, so as to control the first heating control circuit unit to be opened and closed, thereby controlling the first ceramic heating sheet 4 to be opened and closed; the temperature control main control chip controls the attraction and the disconnection of the second relay 44 through the I/O port, thereby controlling the opening and the closing of the second heating control circuit unit and achieving the purpose of controlling the opening and the closing of the second ceramic heating plate 10; the first heating control circuit unit is connected with the power interface circuit through a temperature measurement main control chip, and the second heating control circuit unit is connected with the power interface circuit through a temperature control main control chip; the power supply output power of the first ceramic heating piece 4 and the second ceramic heating piece 10 is set according to the temperature value required to be kept, when the device is used for experiments, the power supply parameters of the first ceramic heating piece 4 and the second ceramic heating piece 10 are 12V 1A, namely the heating temperature of the first ceramic heating piece 4 and the second ceramic heating piece 10 can be controlled to be about 60 ℃.
Specifically, the temperature control main chip is further connected with an interface circuit to be expanded, a program downloading port circuit, a power supply interface circuit and a minimum system clock reset circuit.
The temperature measurement main control chip and the temperature control main control chip are designed by a microcontroller minimum system, an STC89C52RC single chip microcomputer is adopted as a core for design, and the temperature measurement main control chip mainly comprises a power supply circuit, a clock circuit and a reset circuit, wherein the crystal oscillator frequency of the clock circuit part is 11.0592MHz, a bypass capacitor uses 22pF, and a specific system principle diagram is shown in an attached figure 3.
The device not only can be applied to the restaurant of a school for controlling the temperature of the hot dish plate, but also can be placed on an office table to serve as an intelligent cup mat, and water with the desired temperature can be drunk in real time in the office.
Example 2
As shown in fig. 1, embodiment 2 of the present invention discloses a non-contact distributed temperature control system, which is divided into a temperature measuring device and a temperature control device, wherein the temperature measuring device includes an infrared temperature measuring sensor 1 and a display screen 6; the temperature control device comprises a base, a temperature control plate, a ceramic heating sheet and a relay.
Specifically, a plurality of temperature control plates are tiled on a base side by side, one corner of the base is fixedly connected with a support rod, the support rod is rotatably connected with an infrared temperature measurement sensor 1 through a joint structure 7, a display screen 6 is fixedly connected in the middle of the support rod, the display screen 6 is connected with a temperature measurement circuit board, the temperature control circuit board is tiled on the bottommost layer of the temperature control plate, a layer of transparent acrylic plate is tiled on the temperature control circuit board, and a ceramic heating sheet is fixed on the transparent acrylic plate; the temperature control circuit board is decorated by acrylic materials, so that the temperature control circuit board and the ceramic heating sheet have a certain spacing distance, and the temperature control circuit board is protected.
Specifically, a temperature measurement main control chip is arranged on the temperature measurement circuit board and connected with a temperature measurement wireless communication module; the temperature control circuit board is provided with a temperature control main control chip which is connected with a temperature control wireless communication module; the temperature measurement wireless communication module and the temperature control wireless communication module both adopt NRF24L01 wireless data transmission modules, and the temperature control ends of the device are multiple, so that the temperature measurement wireless communication module and the temperature control wireless communication module have the function of one-sending-multiple-receiving in the main task finished by the device. According to the data manual given by the NRF24L01 module official, if two wireless modules realize "one-to-one" transmission, it is necessary to set the address matching between the transmitting end and the receiving end, and at the same time, it is necessary to set the same frequency channel and communication frequency. According to the requirements, the addresses of the NRF24L01 modules of the temperature control ends of the systems are set to be the same through programming, and the communication frequency channel and frequency are kept the same, so that the task function of 'one-time-multiple-receiving' of data can be completed. The temperature measurement circuit board of the temperature measurement device acquires temperature measurement data of the infrared temperature measurement sensor to judge whether the heating function is started, then data to be sent are firstly coded, then the temperature measurement wireless communication module is controlled to send the data, the temperature control end firstly decodes the data after receiving the data through the temperature control wireless communication module, and the ceramic heating plate is started according to the received data to achieve heating.
The display screen 6 adopts a touch liquid crystal display screen, a fixing groove of a temperature measuring circuit board is arranged in a shell of the touch liquid crystal display screen, the temperature measuring circuit board is embedded in the fixing groove, and a temperature measuring main control chip in the temperature measuring circuit board is communicated with the touch liquid crystal display screen through a liquid crystal display circuit unit; can use touch liquid crystal display to look over the real-time temperature of testee and the threshold value of setting for this moment, the opening and the closed condition of the ceramic heating piece of the accuse temperature end of simultaneous display, specifically realize through temperature measurement wireless communication module and accuse temperature wireless communication module's communication, the state of the ceramic heating piece of the accuse temperature end is transmitted for accuse temperature wireless communication module through accuse temperature main control chip, accuse temperature wireless communication module transmits and gives temperature measurement wireless communication module.
The touch liquid crystal display screen is provided with a temperature threshold value adding and subtracting function key and a heating switch function key, and the temperature threshold value setting circuit unit is connected with the temperature threshold value adding and subtracting function key through the temperature measurement main control chip; the temperature measurement main control chip is connected with the heating function switch circuit unit, the heating function switch circuit unit is connected with the heating switch function key through the temperature measurement main control chip, the function key mainly adopts an HTTM capacitive touch switch key, the function key area is provided with the lower side of the touch display screen, the function adjustment can be completed only by setting the touch function key at every time, the function keys are three, namely, the increase and the reduction of the temperature threshold value are respectively realized, and the function design of the key of the heating function is opened.
In this embodiment, the connection relationship between the temperature measurement main control chip and the infrared temperature measurement sensor, the connection relationship between the temperature measurement main control chip and the program download port circuit, the power supply interface circuit, and the minimum system clock reset circuit, and the connection relationship between the temperature measurement main control chip and the program download port circuit, the power supply interface circuit, the minimum system clock reset circuit, and the relay of the temperature control main control chip are all the same as those in embodiment 1, and details are not repeated here, and refer to embodiment 1 specifically.
According to the two embodiments, the main test method and test results of the system at the experimental stage are as follows:
the test method comprises the following steps: the system is placed on a desktop, and measuring cups are respectively placed above a system temperature measuring device and a ceramic heating sheet (4) of a system temperature control device and are numbered, wherein the number 1 is the measuring cup of the system temperature measuring device, and the numbers 2 and 3 are the measuring cups of the system temperature control device. 300ml of hot water of the same temperature was poured into three measuring cups at the same time, and the temperature of the water in the measuring cups was measured with a glass thermometer and compared with the temperature of the water measured by the system and recorded. And then starting the automatic heating function of the system, setting the constant temperature value as 50 ℃, setting the test time as 100 minutes, randomly selecting time within 100 minutes to measure and record the temperature of the water in the three measuring cups, and simultaneously recording the running state of a heating plate of the system, wherein the measurement result of the system is shown in the following table:
TABLE 1 temperature measuring device (No. 1 measuring cup) water temperature measuring and recording meter of system
TABLE 2 temperature control device (No. 2 measuring cup) water temperature measuring and recording table
TABLE 3 temperature control device (No. 3 measuring cup) water temperature measuring and recording table
The data of the three tables are observed, so that the system temperature measuring device has good performance in the aspect of measuring the temperature of a measured object, certain errors exist between the system measured data and the measured result of the glass thermometer, the average error value is about 0.9 ℃, the use of the system in catering is not greatly influenced within the range of 5 ℃ of allowable error, and the system meets the initial design requirements of projects. Meanwhile, the system temperature measuring device and the wireless data transmission for temperature control are normal, and the temperature measurement of the system temperature measuring device meets the design requirements.
In summary, the system is in the allowable error range in the experimental stage, and meets the design requirements of the project when the project is initially set.
The working principle is as follows:
this device presses down and adds hot switch function button, the automatic heating function is opened to entire system, after the real-time temperature value of dinner plate is obtained through infrared temperature measurement sensor 1, give temperature detection circuit unit, temperature detection circuit unit gives temperature measurement main control chip with temperature measurement data transmission, temperature measurement main control chip compares with the heating temperature threshold value of setting for through temperature plus-minus function button, then judge whether launch the heating function of first ceramic heating piece 4 and second ceramic heating piece 10, and the accuse temperature wireless communication module 9 that will judge the data and transmit to each accuse temperature sub-device through temperature measurement wireless communication module 2, accuse temperature wireless communication module 9 gives accuse temperature main control chip with data transmission, accuse temperature main control chip gives received data relay, control second ceramic heating piece 10 heats.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced equally, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A non-contact distributed temperature control system, comprising:
the temperature measuring device comprises a base, wherein a temperature measuring circuit board is tiled on the base; one corner of the base is fixedly connected with a supporting rod, and one end of the supporting rod is connected with a temperature measuring sensor;
the temperature control device comprises a plurality of temperature control sub-devices which are arranged in a distributed manner, wherein each temperature control sub-device comprises a bottom plate and a temperature control circuit board which is paved on the bottom plate;
the temperature measuring device is in wireless communication connection with the temperature control sub-device.
2. The non-contact distributed temperature control system of claim 1, wherein the temperature measurement circuit board is connected with a temperature measurement main control chip, a transparent acrylic plate is flatly laid on the temperature measurement circuit board, and a first ceramic heating plate is fixed on the transparent acrylic plate.
3. The non-contact distributed temperature control system according to claim 2, wherein the temperature measurement main control chip is connected with a liquid crystal display circuit unit, and the liquid crystal display circuit unit is connected with the temperature threshold setting circuit unit through the temperature measurement main control chip;
the liquid crystal display circuit unit is communicated with the temperature measurement circuit unit through the temperature measurement main control chip, and the temperature measurement circuit unit acquires temperature measurement data of the temperature measurement sensor; the liquid crystal display circuit unit is electrically connected with the display screen; the display screen is fixedly connected to the supporting rod.
4. The non-contact distributed temperature control system according to claim 2, wherein the temperature measurement main control chip is connected with a temperature threshold value setting circuit unit, and the temperature threshold value setting circuit unit is connected with a temperature threshold value add-subtract function key through the temperature measurement main control chip; the temperature threshold value addition and subtraction function key is tightly attached to the lower surface of the transparent acrylic plate above the temperature measurement circuit board;
the temperature measurement main control chip is connected with the heating function switch circuit unit, and the heating function switch circuit unit is connected with the heating switch function key through the temperature measurement main control chip; the heating switch function key is tightly attached to the lower surface of the transparent acrylic plate above the temperature measuring circuit board.
5. The non-contact distributed temperature control system according to claim 2, wherein the temperature measurement main control chip is connected with a temperature measurement wireless communication module;
the temperature measurement main control chip is connected with a first heating control circuit unit and a first relay respectively, and the first heating control circuit unit is electrically connected with a first ceramic heating sheet.
6. The non-contact distributed temperature control system of claim 1, wherein the temperature control circuit board is connected with a temperature control main control chip, a layer of transparent acrylic plate is tiled on the temperature control circuit board, and a second ceramic heating plate is fixed on the transparent acrylic plate.
7. The non-contact distributed temperature control system according to claim 5, wherein the temperature measurement wireless communication module is connected with the temperature control wireless communication module, and the temperature control wireless communication module is disposed on the temperature control circuit board and connected with the temperature control main control chip.
8. The non-contact distributed temperature control system of claim 6, wherein said temperature control master control chip is connected to said second relay via an I/O port.
9. The system of claim 8, wherein the temperature control main control chip is connected to a second heating control circuit unit, and the second heating control circuit unit is electrically connected to a second ceramic heater chip.
10. The non-contact distributed temperature control system according to claim 1, wherein the temperature measuring circuit board and the temperature control circuit board are further provided with a power circuit unit.
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| CN202121359009.3U CN214704446U (en) | 2021-06-18 | 2021-06-18 | Non-contact distributed temperature control system |
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| CN202121359009.3U CN214704446U (en) | 2021-06-18 | 2021-06-18 | Non-contact distributed temperature control system |
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| CN202121359009.3U Active CN214704446U (en) | 2021-06-18 | 2021-06-18 | Non-contact distributed temperature control system |
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| CN (1) | CN214704446U (en) |
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