CN115452197A - Temperature detection method, system and device and detection device calibration method - Google Patents

Abstract

The invention provides a temperature detection method, a system, a device and a detection device calibration method, wherein the temperature detection method is applied to a temperature detection device and comprises the steps of detecting the temperature of a current heating head, obtaining the detection temperature information of the current heating head and sending the detection temperature information of the current heating head to a data processing device; transmitting reference information to the data processing apparatus so that: the data processing device can determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information, wherein the reference information represents the quantitative relation between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

Description

Temperature detection method, system, device and detection device calibration method

technical field

The invention relates to the field of temperature measurement, in particular to a temperature detection method, system, device and detection device calibration method.

Background technique

Polymerase Chain Reaction (PCR for short) is a molecular biology technique that utilizes DNA polymerase to perform mass replication of specific target DNA fragments in vitro. The constant temperature heating head is a commonly used temperature raising device in the polymerase chain reaction. During the batch production process of the constant temperature heating head, the temperature of multiple constant temperature heating heads needs to be calibrated so that the temperature of multiple constant temperature heating heads in the same batch is consistent.

In the prior art, the temperature of the heating head can be calibrated by using the temperature debugging tool and the temperature tester. For example, the temperature of multiple heating heads can be detected one by one by using the temperature debugging tool and the temperature tester. After the temperature of the temperature tester is stable When taking the reading of the temperature tester as the real temperature, multiple temperatures of each heating head are tested in this way, and then the final temperature of each heating head is determined (for example, the average value of multiple temperatures is taken).

However, such a way of measuring one by one multiple times, because each measurement result has a certain deviation from the real temperature, it will cause a large deviation between the final measurement result of the constant temperature heating head and the real temperature, and at the same time, in the same batch When multiple heating heads are calibrated in batches, if different temperature testers are used for measurement, it will also be difficult to calibrate the temperature of multiple heating heads due to the difference in analog-to-digital conversion of different temperature testers and the inconsistency of related circuits. unanimous.

It can be seen that the prior art has the problems of large measurement errors and difficulty in ensuring that the temperatures of multiple heating heads in the same batch are kept consistent.

Contents of the invention

The invention provides a temperature detection method, system, device and detection device calibration method to solve the problems of large measurement errors and difficulty in ensuring that the temperatures of multiple heating heads in the same batch are consistent.

According to the first aspect of the present invention, a temperature detection method of a heating head is provided, which is applied to a temperature detection device, including:

Detecting the temperature of the current heating head, obtaining the detected temperature information of the current heating head, and sending the detected temperature information of the current heating head to the data processing device;

Sending the reference information to the data processing device, so that: the data processing device can determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information, and the reference information The information represents the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

Optionally, the quantitative relationship is any one of the following:

A linear function relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

The quadratic function relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

A cubic function relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

Optionally, before detecting the temperature of the current heating head, it also includes:

Acquire the detected temperature information of multiple calibration media, and send the detected temperature information of the multiple calibration media to the calibration device, so that: the calibration device can be based on the detection temperature information of the multiple calibration media, and each The actual temperature information represented by the calibration medium is fitted to the quantitative relationship to determine the reference information.

Optionally, before sending the reference information to the data processing device, the method further includes:

The reference information sent by the calibration device is received and stored.

Optionally, the temperature detection device includes a temperature sensor and an analog-to-digital conversion module; the detected temperature information of the current heating head is obtained after the analog-to-digital conversion module performs analog-to-digital conversion on the actual sensor signal fed back by the temperature sensor Yes, the actual sensor signal matches the resistance value of the temperature sensor;

The detected temperature information of the calibration medium is obtained after the analog-to-digital conversion module performs analog-to-digital conversion on the calibration sensor signal fed back by the calibration medium, and the resistance value of the resistance formed by the calibration sensor signal and the calibration medium is matching, wherein the resistance values of the resistance formed by different calibration media are different, and the resistance value of the resistance formed by the calibration medium matches the resistance value when the temperature sensor detects the corresponding temperature.

According to the second aspect of the present invention, a temperature detection method of a heating head is provided, which is applied to a data processing device, including:

receiving the detected temperature information of the current heating head sent by the temperature detection device; the detected temperature information of the current heating head is obtained by the temperature detection device detecting the temperature of the current heating head;

Obtaining reference information, the reference information characterizes the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

The actual temperature information of the current heating head is determined according to the detected temperature information of the current heating head and the reference information.

Optionally, obtain reference information, including:

The reference information sent by the temperature detection device is received.

According to a third aspect of the present invention, a calibration method for a temperature detection device is provided, which is used to calibrate the reference information involved in the first aspect and the second aspect, and is applied to a calibration device. The calibration method includes:

receiving the detected temperature information of multiple calibration media sent by the temperature detection device;

Obtain the actual temperature information represented by each calibration medium;

According to the detected temperature information of the plurality of calibration media and the actual temperature information represented by each calibration media, the quantitative relationship is fitted to determine the reference information.

Optionally, after determining the reference information, the method further includes: sending the reference information to a temperature detection device, so that the temperature detection device stores the reference information.

According to a fourth aspect of the present invention, a heating head temperature detection system is provided, including a temperature detection device and a data processing device;

The temperature detection device is used to execute the temperature detection method of the heating head involved in the first aspect of the present invention and its optional solutions when the data processing device is electrically connected to the temperature detection device;

The data processing device is used to execute the temperature detection method of the heating head related to the second aspect of the present invention and its optional solutions when the data processing device is electrically connected to the temperature detection device.

Optionally, the temperature detection system also includes a calibration device and a plurality of calibration media;

The temperature detection device is also used to: when the calibration device is electrically connected to the temperature detection device, obtain the detected temperature information of a plurality of calibration media, and send the detection temperature information of the plurality of calibration media to the calibration device. device;

The calibration device is used for: when the calibration device is electrically connected to the temperature detection device, execute the calibration method involved in the third aspect of the present invention and its optional solutions.

According to a fifth aspect of the present invention, a temperature detection device is provided, including: an analog-to-digital conversion module, a temperature sensor, and a data transmission module; the temperature sensor is electrically connected to the analog-to-digital conversion module, and the data transmission module is electrically connected to The analog-to-digital conversion module;

The temperature sensor is used for:

Detecting the current temperature of the heating head, generating a corresponding actual sensor signal, and feeding back the actual sensor signal to the analog-to-digital conversion module;

The analog-to-digital conversion module is used for:

After analog-to-digital conversion is performed on the actual sensor signal of the temperature sensor, the detected temperature information of the current heating head is obtained, and the detected temperature information of the current heating head is sent to the data transmission module;

The data transmission module is used for:

When the data processing device is electrically connected to the data transmission module, the current detected temperature information of the heating head is sent to the data processing device, so that: the data processing device can and reference information to determine the current actual temperature information of the heating head, the reference information representing the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

Optionally, the analog-to-digital conversion module is also used for:

When the calibration medium is connected, after analog-to-digital conversion is performed on the calibration sensor signal of the calibration medium, the detected temperature information of the calibration medium is obtained, and the detected temperature information of the calibration medium is sent to the data transmission module;

The data transmission module is used for:

When the calibration device is electrically connected to the data transmission module, the detected temperature information of the calibration medium is sent to the calibration device, so that: the calibration device can be based on the detected temperature information of multiple calibration media, and each calibration The actual temperature information represented by the medium is fitted to the quantitative relationship to determine the reference information.

Optionally, the actual sensor signal fed back by the temperature sensor matches the resistance value of the temperature sensor;

The calibration sensor signal fed back by the calibration medium matches the resistance value of the resistance formed by the calibration medium, wherein the resistance values of the resistance formed by different calibration media are different, and the resistance formed by the calibration medium The resistance value matches the resistance value when the temperature sensor detects the corresponding temperature.

Optionally, the temperature detection device also includes a storage module;

The data transmission module is further configured to: receive the reference information sent by the calibration device, and directly or indirectly store the reference information in the storage module.

According to a sixth aspect of the present invention, a calibration unit of a temperature detection device is provided, which is applied to a calibration device, including: a calibration detection temperature information receiving subunit, configured to receive detection temperature information of a plurality of calibration media sent by the temperature detection device ;

The calibration actual temperature information acquisition subunit is used to acquire the actual temperature information represented by each calibration medium;

The data fitting subunit is used to determine reference information according to the detected temperature information of the plurality of calibration media and the actual temperature information represented by each calibration media, the reference information characterizes the temperature detected by the temperature detection device The quantitative relationship between the detection temperature information and the actual temperature information of the heating head.

Optionally, the calibration unit of the temperature detection device further includes a reference information sending subunit, configured to: after determining the reference information, send the reference information to the temperature detection device, so that: the temperature detection The device stores the reference information.

According to the seventh aspect of the present invention, a heating head temperature detection data processing unit is provided, which is applied to a data processing device, including:

The heating head detection temperature information receiving subunit is used to receive the detection temperature information of the current heating head sent by the temperature detection device; the detection temperature information of the current heating head is obtained by the temperature detection device detecting the temperature of the current heating head of;

a reference information acquisition subunit, configured to acquire reference information, the reference information representing the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

The actual temperature determination subunit of the heating head is configured to determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information.

According to an eighth aspect of the present invention, an electronic device is provided, including a processor and a memory,

said memory for storing code and associated data;

The processor is configured to execute the codes in the memory to implement the temperature detection method involved in the first aspect and its optional solutions, the temperature detection method involved in the second aspect and its optional solutions, and the first aspect of the present invention. Calibration methods involved in the three aspects and their alternatives.

According to the ninth aspect of the present invention, there is provided a storage medium on which a computer program is stored, and when the program is executed by a processor, the temperature detection method and the second aspect involved in the first aspect of the present invention and its optional solutions are realized The temperature detection method involved in the third aspect and its optional solutions and the calibration method involved in the third aspect and its optional solutions.

The temperature detection method, system, device and detection device calibration method provided by the present invention can use the calibration device to calibrate the temperature detection device to obtain reference information, and use the temperature detection device to detect the temperature of the heating head to obtain detected temperature information, and then pass The data processing device obtains the actual temperature information of the heating head by using the detected temperature information and the reference information. Since the reference information can represent the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head, the same batch When multiple heating heads are used for batch temperature measurement, it can not only reduce the error between the measurement result and the real temperature, but also use the reference information to calibrate the detected temperature information detected by the temperature detection device, avoiding different temperature detection devices. Inconsistent measurement results due to differences in analog-to-digital conversion or related circuits can ensure that the temperatures of multiple heating heads in the same batch are consistent.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic flow chart of a temperature detection method applied to a heating head of a temperature detection device in an embodiment of the present invention;

Fig. 2 is a schematic flow diagram II of a temperature detection method applied to a heating head of a temperature detection device in an embodiment of the present invention;

Fig. 3 is a schematic flow chart III of a temperature detection method applied to a heating head of a temperature detection device in an embodiment of the present invention;

Fig. 4 is a schematic flow diagram of a temperature detection method applied to a heating head of a data processing device in an embodiment of the present invention;

FIG. 5 is a second schematic flow diagram of a temperature detection method applied to a heating head of a data processing device in an embodiment of the present invention;

Fig. 6 is a schematic flow chart of the calibration method of the temperature detection device in an embodiment of the present invention;

Fig. 7 is a schematic flow diagram II of the calibration method of the temperature detection device in an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a temperature detection system in an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a temperature detection device in an embodiment of the present invention;

Fig. 10 is a structural schematic diagram II of the temperature detection device in an embodiment of the present invention;

Fig. 11a is a schematic diagram of a circuit structure of a temperature detection device in an embodiment of the present invention;

Figure 11b is a second schematic diagram of the circuit structure of the temperature detection device in an embodiment of the present invention;

Fig. 11c is a schematic diagram 3 of the circuit structure of the temperature detection device in an embodiment of the present invention;

Figure 11d is a schematic diagram 4 of the circuit structure of the temperature detection device in an embodiment of the present invention;

Fig. 11e is a schematic diagram 5 of the circuit structure of the temperature detection device in an embodiment of the present invention;

Fig. 12 is a schematic diagram of the program module 1 of the calibration unit of the temperature detection device in an embodiment of the present invention;

13 is a second schematic diagram of the program module of the calibration unit of the temperature detection device in an embodiment of the present invention;

Fig. 14 is a schematic diagram of the program module of the temperature detection data processing unit of the heating head in an embodiment of the present invention;

FIG. 15 is a schematic diagram of program modules of an electronic device in an embodiment of the present invention.

Fig. 16 is a first schematic diagram of the installation structure of the temperature sensor in an embodiment of the present invention.

Fig. 17 is a second schematic diagram of the installation structure of the temperature sensor in an embodiment of the present invention.

Explanation of reference signs:

11 - temperature sensor;

111-connector;

15- detection circuit board;

81-elastic compression structure;

811 - first groove;

82 - fixed structure;

83 - insulation block;

9 - heating head;

91 - mounting slot.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

The technical solution of the present invention will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

Please refer to Figure 1, the temperature detection method of the heating head is applied to the temperature detection device, including:

S101: Detect the temperature of the current heating head, obtain the detected temperature information of the current heating head, and send the detected temperature information of the current heating head to a data processing device;

S102: Send the reference information to the data processing device, so that: the data processing device can determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information, so that The reference information represents the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

In one embodiment, the temperature detection device includes a temperature sensor and an analog-to-digital conversion module; (it can be understood with reference to the temperature detection device 1 mentioned later) the detected temperature information of the current heating head is the analog-to-digital conversion module The actual sensor signal fed back by the temperature sensor is obtained after analog-to-digital conversion, the actual sensor signal matches the resistance value of the temperature sensor, and furthermore, as the resistance value changes, the actual sensor signal will change accordingly , the actual sensor signal represents the detected temperature information, which can be understood as the detected temperature information of the analog signal. couplet).

In step S101, the detected temperature information may be actively sent to the data processing device by the temperature detection device, or may be obtained from the temperature detection device through the data processing device, for example, the data processing device sends corresponding instructions to the temperature sensor according to the control logic (data), the temperature detection device returns the current heating head temperature information (such as the AD value corresponding to the current heating head temperature) to the data processing device.

Specifically, step S101 can use the temperature sensor to detect the current temperature of the heating head, use the analog-to-digital conversion module to convert the actual sensor signal fed back by the temperature sensor to analog-to-digital conversion to obtain the detected temperature information of the digital signal, and then pass the detected temperature information through the data transmission module. The temperature information is transmitted to a data processing device. The model and specification of the temperature sensor are not limited, for example, it may be a PT1000 temperature sensor.

The quantitative relationship in step S102 can be a linear functional relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head; it can also be the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head The quadratic function relationship; it can also be the cubic function relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head, and so on. In an implementation manner, the reference information may be, for example, coefficients in the above-mentioned quantization relationship (such as a linear function relationship, a quadratic function relationship, a cubic function relationship, etc.).

Step S102 can be executed by the data transmission module 13 in the temperature detection device 1 mentioned later, which can communicate with the data processing device 13, and then send the reference information to the data processing device.

The data processing device is used to perform data processing on the received data information, and then obtain the actual temperature information of the heating head. Please refer to the data processing device 2 mentioned later for understanding of the specific processing method.

Further, please refer to FIG. 2, before step S101, the detection method includes:

S103: Acquire the detected temperature information of multiple calibration media, and send the detected temperature information of the multiple calibration media to the calibration device, so that: the calibration device can use the detected temperature information of the multiple calibration media, and The actual temperature information represented by each calibration medium is fitted to the quantitative relationship to determine the reference information.

Wherein, the detected temperature information of the calibration medium is obtained after the analog-to-digital conversion module performs analog-to-digital conversion on the calibration sensor signal fed back by the calibration medium, and the calibration sensor signal and the resistance formed by the calibration medium The resistance values are matched, wherein the resistance values of the resistances formed by different calibration media are different, and the resistance values of the resistances formed by the calibration media match the resistance values when the temperature sensor detects the corresponding temperature.

Matching the resistance value of the resistance formed by the calibration medium with the resistance value when the temperature sensor detects the corresponding temperature can be understood as: the resistance formed by the calibration medium is equal to the resistance value when the temperature sensor detects the corresponding temperature Or related, specifically, the resistance value of the temperature sensor at different temperatures can be obtained by measuring with a multimeter, and the calibration medium can be, for example, a calibration plate that can simulate the resistance value of the temperature sensor. Taking the calibration plate at 3°C as an example, a multimeter can be used to first Measure the resistance value of the temperature sensor at 3°C, and then select a calibration board that is equal to or related to the resistance value to simulate the resistance value of the temperature sensor in a 3°C environment, and so on, different calibration boards can be Simulate the resistance value of the temperature sensor at different temperatures. The calibration plates in some examples include: 3°C calibration plate, 20.2°C calibration plate, 40.15°C calibration plate, 59.4°C calibration plate, 80.06°C calibration plate, 100.2°C calibration plate, 120°C calibration plate, etc.

The resistance formed by the calibration medium may be, for example, the resistance of the calibration board itself, or the resistance of the resistance formed by the calibration board and the connector when the calibration board is connected to the temperature detection device through a connector.

The detected temperature information of the calibration medium can be understood as: the temperature measured by connecting the calibration medium to the temperature detection device and using the temperature detection device. The actual temperature information represented by the calibration medium can be understood as: the temperature of the temperature sensor that it can simulate, for example, the actual temperature information represented by the 80.06 calibration plate is 80.06°C.

The calibration device can communicate with the temperature detection device, specifically, it can, for example, communicate with the data transmission module 13 mentioned later, and then can obtain the temperature detection information of multiple calibration media sent by the temperature detection device, and use the temperature detection information of multiple calibration media The above-mentioned quantitative relationship is obtained by fitting the temperature detection information with the actual temperature information represented by each calibration medium, and the reference information is obtained.

In one embodiment, the quantitative relationship may be obtained by curve fitting between the detected temperature information of multiple sets of calibration media and the corresponding actual temperature information.

Since the calibration medium can simulate the resistance value of the temperature sensor, the temperature detection information of the calibration medium can be understood as the detection temperature information detected by the temperature detection device, and because the actual temperature information represented by the calibration medium is known or It is obtained by matching with the temperature sensor, so the quantitative relationship obtained by fitting the temperature detection information of the calibration medium with the actual temperature information represented by it can represent the detection temperature information detected by the temperature detection device and the actual temperature information of the heating head. Quantify relationships.

Further, please refer to FIG. 3 , before step S102 is implemented, step S103 is also included: receiving and storing the reference information sent by the calibration device.

Step S103 can be executed by the data storage module 14 in the temperature detection device 1 mentioned later, which can communicate with the calibration device 4, store the reference information sent by the calibration device 4, and can also communicate with the data transmission module 13, The reference information is sent to the data processing device 2 through the data transmission module 13 .

Please refer to Figure 4, the temperature detection method of the heating head is applied to the data processing device, including:

S201: Receive the detected temperature information of the current heating head sent by the temperature detecting device; the detected temperature information of the current heating head is obtained by detecting the temperature of the current heating head by the temperature detecting device;

S202: Obtain reference information, the reference information characterizes the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

S203: Determine actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information.

Wherein, step S202 may be acquired through communication between the data processing device and the temperature detection device. Further, please refer to FIG. 5 , step S202 includes: Step S2021: receiving the reference information sent by the temperature detection device.

In some solutions, the data processing device can obtain the actual temperature information of the heating head through the following processing:

If the quantitative relationship adopts a quadratic function relationship, then there is a functional relationship y=a*x^2+b*x+c, x represents the detected temperature information detected by the temperature detection device, and y represents the actual temperature information of the heating head, Then the reference information is a, b, and c in the functional relationship. After the data processing device receives the detected temperature information and reference information of the current heating head, it can calculate the actual temperature information of the heating head by substituting each information into the above functional relationship. In other solutions, the quantitative relationship may also be other functional relationships.

Please refer to FIG. 6, the calibration method of the temperature detection device is used to calibrate the reference information used in the temperature detection method of the heating head described in the above embodiments, and is applied to the calibration device. The calibration method includes:

S301: Receive the detected temperature information of multiple calibration media sent by the temperature detection device;

S302: Obtain the actual temperature information represented by each calibration medium;

S303: According to the detected temperature information of the multiple calibration media and the actual temperature information represented by each calibration medium, fit the quantitative relationship to determine the reference information.

Among them, in step S302, the actual temperature information represented by each calibration medium can be manually entered into the calibration device, or can be automatically matched by using the resistance value information of the calibration medium after measuring the calibration medium through a reading device (such as a multimeter). arrived.

Further, please refer to FIG. 7 , after step S303, a step S304 is further included: sending the reference information to a temperature detection device, so that: the temperature detection device stores the reference information.

In an exemplary working process, the temperature detection device is first calibrated, the temperature detection device is electrically connected to the calibration device, and then multiple calibration media are sequentially connected to the temperature detection device, the temperature detection device implements step S103, and the calibration device performs step S103. Step S301, the calibration device implements step S302 after obtaining the detected temperature information of multiple calibration media, implements step S303 after obtaining the actual temperature information represented by each calibration medium, and implements step S304 after obtaining the reference information, through the above steps, the temperature detection device Ability to acquire and store reference information through communication with the calibration device.

Then use the calibrated temperature detection device to measure the temperature of the heating head, electrically connect the temperature detection device to the data processing device, the temperature detection device implements steps S101 and S102, and the data processing device obtains the temperature of the current heating head through steps S201 and S201 After detecting the temperature information and the reference information, step S203 is implemented to obtain the current actual temperature information of the heating head. Through the above steps, the data processing device can obtain the current actual temperature information of the heating head by communicating with the temperature detection device and using the reference information stored in the temperature detection device.

It can be seen that the temperature detection method and the calibration method of the temperature detection device provided by the present invention can use the calibration device to calibrate the temperature detection device to obtain reference information, and use the temperature detection device to detect the temperature of the heating head to obtain the detected temperature information. The data processing device obtains the actual temperature information of the heating head by using the detected temperature information and the reference information. Since the reference information can represent the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head, the same batch When multiple heating heads are used for batch temperature measurement, it can not only reduce the error between the measurement result and the real temperature, but also use the reference information to calibrate the detected temperature information detected by the temperature detection device, avoiding different temperature detection devices. Inconsistent measurement results due to differences in analog-to-digital conversion or related circuits can ensure that the temperatures of multiple heating heads in the same batch are consistent.

Please refer to FIG. 8, the temperature detection system of the heating head, including a temperature detection device 1 and a data processing device 2;

The temperature detection device 1 is used to execute the temperature detection method applied to the heating head of the temperature detection device described in the above embodiments when the data processing device 2 is electrically connected to the temperature detection device 1 ;

The data processing device 2 is configured to execute the temperature detection method applied to the heating head of the data processing device described in the above embodiments when the data processing device 2 is electrically connected to the temperature detection device 1 .

Further, the system also includes a calibration device 4 and a plurality of calibration media 3;

The temperature detection device 1 is also used to: when the calibration device 4 is electrically connected to the temperature detection device 1, obtain the detected temperature information of a plurality of calibration media 3, and store the detected temperature information of the plurality of calibration media 3 sent to the calibration device 4;

The calibration device 4 is used for: when the calibration device 4 is electrically connected to the temperature detection device 1 , execute the calibration method described in the above-mentioned embodiments.

In one example, the calibration medium 3 can be made of a high-precision, low-temperature floating resistor and a connector, which can be electrically connected to the temperature detection device 1 (for example, electrically connected to the analog-to-digital conversion module in the temperature detection device 1 ) through the connector. 12), it can also be electrically connected to the temperature detection device 1 by welding.

Wherein, the data processing device 2 can be electrically connected to the temperature detection device 1 all the time, and can also be electrically connected to the temperature detection device 1 when actual measurement is required, and the calibration device 4 can be electrically connected to the temperature detection device 1 before the actual measurement, Those that are not electrically connected to the temperature detection device 1 during actual measurement may also be electrically connected to the temperature detection device 1 all the time.

Please refer to FIG. 9 , the temperature detection device 1 includes: an analog-to-digital conversion module 12, a temperature sensor 11 and a data transmission module 13; the temperature sensor 11 is electrically connected to the analog-to-digital conversion module 12, and the data transmission module 13 is electrically connected to The analog-to-digital conversion module 12;

The temperature sensor 11 is used for:

Detecting the current temperature of the heating head, generating a corresponding actual sensor signal, and feeding back the actual sensor signal to the analog-to-digital conversion module;

The analog-to-digital conversion module 12 is used for:

After analog-to-digital conversion is performed on the actual sensor signal of the temperature sensor, the detected temperature information of the current heating head is obtained, and the detected temperature information of the current heating head is sent to the data transmission module 13;

The data transmission module 13 is used for:

When the data processing device 2 is electrically connected to the data transmission module 13, the detected temperature information of the current heating head is sent to the data processing device 2, so that: the data processing device 2 can The detected temperature information and reference information determine the actual temperature information of the current heating head, and the reference information characterizes the quantitative relationship between the detected temperature information detected by the temperature detection device 1 and the actual temperature information of the heating head.

Wherein, the data transmission module 13 may be, for example, a communication interface integrated in the analog-to-digital conversion module 12 or other modules, or may be a separate chip capable of data transmission.

Further, the analog-to-digital conversion module 12 is also used for:

When the calibration medium 3 is connected, after analog-to-digital conversion is performed on the calibration sensor signal of the calibration medium 3, the detected temperature information of the calibration medium is obtained, and the detected temperature information of the calibration medium is sent to the data transmission Module 13;

The data transmission module 13 is used for:

When the calibration device 4 is electrically connected to the data transmission module 13, the detected temperature information of the calibration medium 3 is sent to the calibration device 4, so that: the calibration device 4 can Information, as well as the actual temperature information represented by each calibration medium, fitting the quantitative relationship to determine the reference information.

Among them, in order to improve the measurement accuracy and reduce the measurement error, a high-precision temperature sensor can be selected, for example, a temperature sensor with an accuracy of ±0.2°C can be selected.

Further, please refer to FIG. 10 , the temperature detection device 1 also includes a storage module 14;

The data transmission module 13 is further configured to: receive the reference information sent by the calibration device 4 , and directly or indirectly store the reference information in the storage module 14 .

In one example, the circuits of the analog-to-digital conversion module 12, the data transmission module 13, and the storage module 14 in the temperature detection device 1 can be integrated into the detection circuit board, and its internal circuit structure is shown in Figure 11.

Among them, please refer to FIG. 11a and FIG. 11b. Chip U1 and chip U3 are used to supply power to the analog-to-digital conversion module 12. Please refer to FIG. 11b and FIG. 11c. The interface is connected to the SPI_CS, SPI_SCK, SPI_MOSI, and SPI_MISO communication interfaces of the connector CN1 in the data transmission module 13, please refer to FIG. For the EE_CS, SPI_SCK, SPI_MOSI, and SPI_MISO communication interfaces of the connector CN1, please refer to FIG. 11e. The detection circuit board can be electrically connected to the calibration medium through the connector CN2, and to the temperature sensor through the connector CN3.

Specifically, the data transmission module 13 can be electrically connected to the calibration device through the external communication interface of the connector CN1 when performing the calibration method of the temperature detection device in the above-mentioned embodiments, and the detection method of the temperature detection device in the above-mentioned embodiments , the data processing device can be electrically connected through the external communication interface of the connector CN1, wherein SPI_MOSI, SPI_MISO, and SPI_SCK are conventional SPI communication interfaces, SPI_CS and EE_CS are chip select signals, and the calibration device or data processing device controls SPI_CS and EE_CS The level can choose whether the system is currently communicating with the chip U2 or the chip U4. If the chip U2 is communicating, the detected temperature information can be obtained. If the chip U4 is communicating, the reference information can be obtained.

In addition, in some solutions, a multi-channel analog-to-digital conversion module 12 can be selected, and one detection circuit board can be electrically connected to multiple temperature sensors at the same time, so that the same detection circuit board can be used to detect the temperatures of multiple heating heads.

In other examples, the circuit of the temperature detection device 1 can also have other structures, as long as it can realize temperature detection, analog-to-digital conversion of sensor signals, data transmission and storage, and can communicate with the calibration device 4 and the data processing device 2 at the same time, and It is possible to connect the calibration medium 3 without departing from the scope of this embodiment.

Please refer to FIG. 12 , a calibration unit 5 of a temperature detection device is provided, which is applied to the calibration device 4, including:

The calibration detection temperature information receiving subunit 51 is used to receive the detection temperature information of multiple calibration media sent by the temperature detection device;

The calibration actual temperature information acquisition subunit 52 is used to acquire the actual temperature information represented by each calibration medium;

The data fitting subunit 53 is configured to determine reference information based on the detected temperature information of the plurality of calibration media and the actual temperature information represented by each calibration medium, the reference information representing the temperature detected by the temperature detection device The quantitative relationship between the detected temperature information and the actual temperature information of the heating head.

Further, please refer to FIG. 13 , the calibration unit 5 of the temperature detection device further includes a reference information sending subunit 54, configured to: after determining the reference information, send the reference information to the temperature detection device, so that: the The temperature detection device stores the reference information.

Please refer to FIG. 14 , a temperature detection data processing unit 6 of a heating head is provided, including:

The heating head detection temperature information receiving subunit 61 is used to receive the detection temperature information of the current heating head sent by the temperature detection device; the detection temperature information of the current heating head is obtained by the temperature detection device detecting the temperature of the current heating head owned;

A reference information acquisition subunit 62, configured to acquire reference information, the reference information representing the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

The actual temperature determination subunit 63 of the heating head is configured to determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information.

Please refer to FIG. 15 , an electronic device 7 is provided, including a processor 71 and a memory 73,

The memory 73 is used to store codes;

The processor 71 is configured to execute the codes in the memory to implement the methods involved above.

Processor 71 is capable of communicating with memory 73 via bus 72 .

An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and the above-mentioned method is implemented when the program is executed by a processor.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

In addition, please refer to FIG. 16 and FIG. 17 , the present invention also provides a temperature sensor installation structure, including an elastic compression structure 81 and a fixing structure 82; the heating head 9 is provided with an installation groove 91, and the temperature sensor 11 is installed In the groove 91, and between the elastic compression structure 81 and the heating head 9; the temperature measuring surface of the temperature sensor 11 is close to the heating head 9, and a thermally conductive material, such as thermally conductive silicone grease, can also be coated between the temperature measuring surface and the heating head , the elastic compression structure 81 is installed in the installation groove 91 and is in the compression position. Being in the compression position can be understood as: when the elastic compression structure 81 is embedded in the installation groove 91, it is in a squeezed or stressed state, so that The elastic pressing structure 81 can make use of its own elastic force to make its surroundings cling to the groove wall of the installation groove 91, without or not easy to produce displacement;

The fixing structure 82 can be such as a PCB board, which can be fixed to the heating head 9 by screws, and one side of the fixing structure 82 is close to the whole or part of the side of the elastic compression structure 81 away from the temperature sensor 11, so as to limit the elastic compression structure 81 from The mounting slot pops up.

The elastic pressing structure 81 is provided with a first groove 811 near the side of the temperature sensor 11, the temperature sensor 11 is located in the first groove 811, and the elastic pressing structure 81 is also provided with at least one second groove, the connection of the temperature sensor The wire 111 extends through the second groove to the outside of the fixing structure 82 .

Further, please refer to FIG. 17, the temperature detection device also includes a thermal insulation block 83; the thermal insulation block 83 can be installed between the fixed structure 82 and the detection circuit board 15 by screws, and the temperature sensor 11 is electrically connected to the A detection circuit board 15 , wherein the detection circuit board 15 integrates circuits such as the analog-to-digital conversion module 12 , the data transmission module 13 , and the storage module 14 in the aforementioned temperature detection device 1 .

Through the elastic compression structure 81 and the fixed structure 82, the temperature sensor 11 can be closely attached to the heating head 9, avoiding the gap between the temperature sensor 11 and the heating head, thereby reducing the measurement error, and at the same time, because each temperature sensor The elastic compression structure 81 is installed in the installation groove 91 and is in the compression position, so that when the temperature measurement of the heating heads is carried out in batches, it can be ensured that the installation positions of each heating head and the temperature sensor are relatively consistent, thereby avoiding or reducing the The error between the measurement results of each heating head.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (20)

1. A temperature detection method of a heating head is applied to a temperature detection device, and is characterized by comprising the following steps:

detecting the temperature of the current heating head to obtain the detected temperature information of the current heating head, and sending the detected temperature information of the current heating head to a data processing device;

sending reference information to the data processing apparatus such that: the data processing device can determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information, wherein the reference information represents the quantitative relation between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

2. The method of detecting the temperature of a heating tip according to claim 1,

the quantization relationship is any one of:

the temperature detection device detects the linear function relationship between the detected temperature information and the actual temperature information of the heating head;

a quadratic function relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

and a cubic function relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

3. The method of detecting a temperature of a heating tip according to claim 1, further comprising, before detecting a current temperature of the heating tip:

acquiring the detected temperature information of a plurality of calibration media, and sending the detected temperature information of the plurality of calibration media to a calibration device so as to: the calibration device can fit the quantitative relation according to the detected temperature information of the plurality of calibration media and the actual temperature information represented by each calibration medium to determine the reference information.

4. The method for detecting a temperature of a heating tip according to claim 3, further comprising, before transmitting the reference information to the data processing apparatus:

and receiving and storing the reference information sent by the calibration device.

5. The method of claim 3, wherein the temperature detecting means comprises a temperature sensor and an analog-to-digital conversion module; the detected temperature information of the current heating head is obtained by performing analog-to-digital conversion on an actual sensor signal fed back by the temperature sensor by the analog-to-digital conversion module, and the actual sensor signal is matched with the resistance value of the temperature sensor;

the detected temperature information of the calibration medium is obtained after the analog-to-digital conversion module performs analog-to-digital conversion on a calibration sensor signal fed back by the calibration medium, the calibration sensor signal is matched with the resistance value of a resistor formed by the calibration medium, wherein the resistance values of the resistors formed by different calibration media are different, and the resistance value of the resistor formed by the calibration medium is matched with the resistance value of the temperature sensor when the temperature sensor detects the corresponding temperature.

6. A temperature detection method of a heating head is applied to a data processing device and comprises the following steps:

receiving detection temperature information of the current heating head sent by a temperature detection device; the detected temperature information of the current heating head is obtained by detecting the temperature of the current heating head by the temperature detection device;

acquiring reference information, wherein the reference information represents the quantitative relation between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head;

and determining the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information.

7. The method of claim 6, wherein the acquiring the reference information includes:

and receiving the reference information sent by the temperature detection device.

8. A calibration method of a temperature detection apparatus for calibrating reference information used in the temperature detection method of a heating head according to claim 1 or 6, applied to a calibration apparatus, the calibration method comprising:

receiving detection temperature information of a plurality of calibration media sent by a temperature detection device;

acquiring actual temperature information represented by each calibration medium;

and fitting the quantitative relation according to the detected temperature information of the calibration media and the actual temperature information represented by each calibration medium to determine the reference information.

9. The method for calibrating a temperature detecting device according to claim 8, further comprising, after determining the reference information: sending the reference information to a temperature detection device such that: the temperature detection device stores the reference information.

10. A temperature detection system of a heating head is characterized by comprising a temperature detection device and a data processing device;

the temperature detection means is used for executing the temperature detection method of the heating head according to claim 1 when the data processing means is electrically connected to the temperature detection means;

the data processing device is configured to execute the method for detecting a temperature of a heating head according to claim 6 or 7 when the data processing device is electrically connected to the temperature detecting device.

11. The system of claim 10, further comprising a calibration device and a plurality of calibration media;

the temperature detection device is also used for: when the calibration device is electrically connected with the temperature detection device, acquiring the detection temperature information of a plurality of calibration media, and sending the detection temperature information of the plurality of calibration media to the calibration device;

the calibration device is used for: the calibration method of claim 8 or 9 is performed when the calibration device is electrically connected to the temperature detection device.

12. A temperature detection device, comprising: the device comprises an analog-to-digital conversion module, a temperature sensor and a data transmission module; the temperature sensor is electrically connected with the analog-to-digital conversion module, and the data transmission module is electrically connected with the analog-to-digital conversion module;

the temperature sensor is used for:

detecting the temperature of the current heating head, generating a corresponding actual sensor signal, and feeding the actual sensor signal back to the analog-to-digital conversion module;

the analog-to-digital conversion module is used for:

after analog-to-digital conversion is carried out on actual sensor signals of the temperature sensor, detection temperature information of the current heating head is obtained, and the detection temperature information of the current heating head is sent to the data transmission module;

the data transmission module is used for:

when a data processing device is electrically connected with the data transmission module, sending the detected temperature information of the current heating head to the data processing device so as to enable: the data processing device can determine the actual temperature information of the current heating head according to the detected temperature information of the current heating head and reference information, wherein the reference information represents the quantitative relation between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

13. The temperature detecting apparatus according to claim 12,

the analog-to-digital conversion module is further configured to:

when a calibration medium is accessed, performing analog-to-digital conversion on a calibration sensor signal of the calibration medium to obtain detection temperature information of the calibration medium, and sending the detection temperature information of the calibration medium to the data transmission module;

the data transmission module is used for:

when the calibration device is electrically connected with the data transmission module, the detection temperature information of the calibration medium is sent to the calibration device, so that: the calibration device can fit the quantitative relation according to the detected temperature information of a plurality of calibration media and the actual temperature information represented by each calibration medium to determine the reference information.

14. The temperature sensing device of claim 13, wherein the actual sensor signal fed back by the temperature sensor matches a resistance value of the temperature sensor;

the calibration sensor signal fed back by the calibration medium is matched with the resistance value of the resistor formed by the calibration medium, wherein the resistance values of the resistors formed by different calibration media are different, and the resistance value of the resistor formed by the calibration medium is matched with the resistance value of the temperature sensor when the temperature sensor detects the corresponding temperature.

15. The temperature sensing device of claim 13, further comprising a memory module;

the data transmission module is further configured to: and receiving the reference information sent by the calibration device, and directly or indirectly storing the reference information in the storage module.

16. A calibration unit of a temperature detection device is applied to a calibration device and is characterized by comprising:

the calibration detection temperature information receiving subunit is used for receiving the detection temperature information of the plurality of calibration media sent by the temperature detection device;

the calibration actual temperature information acquisition subunit is used for acquiring actual temperature information represented by each calibration medium;

and the data fitting subunit is used for determining reference information according to the detected temperature information of the plurality of calibration media and the actual temperature information represented by each calibration medium, wherein the reference information represents the quantitative relationship between the detected temperature information detected by the temperature detection device and the actual temperature information of the heating head.

17. The calibration unit of the temperature detection device according to claim 16, further comprising a reference information transmission subunit configured to: after determining the reference information, sending the reference information to a temperature detection device such that: the temperature detection device stores the reference information.

18. A temperature detection data processing unit of a heating head, applied to a data processing device, is characterized by comprising:

the heating head detection temperature information receiving subunit is used for receiving the current detection temperature information of the heating head sent by the temperature detection device; the detected temperature information of the current heating head is obtained by detecting the temperature of the current heating head by the temperature detection device;

a reference information acquiring subunit configured to acquire reference information representing a quantitative relationship between detected temperature information detected by the temperature detecting device and actual temperature information of the heating head;

and the heating head actual temperature determining subunit is used for determining the actual temperature information of the current heating head according to the detected temperature information of the current heating head and the reference information.

19. An electronic device, comprising a processor and a memory,

the memory is used for storing codes and related data;

the processor configured to execute code in the memory to implement the method of any one of claims 1 to 9.

20. A storage medium having stored thereon a computer program which, when executed by a processor, carries out the method of any one of claims 1 to 9.

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