CN219285087U - Coding sensor - Google Patents

Abstract

The utility model relates to a coding sensor, which comprises a sensor body, a substrate, an integrated circuit, coding pins and a packaging layer, wherein a sensing unit and a plurality of sensing pins are arranged on the sensor body; the integrated circuit is arranged on the substrate and used for storing sensor information; the coding pins are arranged on the substrate, the number of the coding pins is not less than two, and the coding pins are connected with the integrated circuit; the packaging layer is arranged on the substrate, and the integrated circuit and the coding pins are both positioned in the packaging layer. The coding sensor can realize unique coding of a single sensor in the mass production process, stores relevant information and measurement parameters of the sensor, does not need user intervention when in use, automatically identifies the sensor code by an upper computer, automatically reads relevant parameters for driving and measuring, and simultaneously avoids the limitation of internet connection and a remote database, thereby avoiding the possibility of confusion of coding and attack in the process of interacting with remote data when in use.

Description

Coding sensor

Technical Field

The utility model relates to a sensor, in particular to a coding sensor.

Background

In recent years, with the great development of the sensor research field, miniaturization and portability of experimental instruments and test equipment are greatly accelerated, the cost is greatly reduced, the operation is simpler, and the biosensor is more suitable for different detection environments, wherein the biosensor represented by an electrochemical sensor promotes the progress of the medical health field and the popularization and popularity of POCT (PointofCareTest).

The electrochemical sensor is a sensor which is based on the electrochemical property of an object to be detected and converts the chemical quantity of the object to be detected into an electric quantity for sensing detection, and the electrochemical property of the object to be detected is characterized by measuring the change of electric signals such as potential, current and the like generated in the electrochemical reaction of a target when the electrochemical sensor is used. Among the numerous sensor types, electrochemical sensors have advantages of relatively small volume, low power consumption, simple structure, low cost, etc., and have gradually become important points in research fields, and have a wide application range. Representative among them are enzyme biosensors, which use the principle of specific catalysis of enzymes and electrical detection of electrochemical electrodes to measure and monitor various physiological indexes of the human body, such as blood, interstitial fluid, urine, saliva, etc. For example, a biosensor which can be used for blood glucose detection can be in the form of a test strip for detecting a reaction signal of a blood sample on an electrode of the test strip so as to calculate the blood glucose concentration; or a sensor in the form of a microneedle can be implanted a few millimeters below the skin to detect the estimated blood glucose concentration by reaction of interstitial fluid with enzymes and electrodes on the sensor.

However, current sensor technology, due to material and process limitations, is not capable of achieving a near perfect sensor, especially in manufacturing, and often there are various variations within and between manufacturing lots. For example, the immobilization of the sensor enzyme and the maintenance of the enzyme activity are difficult to achieve high consistency in mass production; certain critical dimensions of the sensor cannot achieve high precision and repeatability under the current production process, such as critical dimensions of electrodes, thickness and uniformity of a coating film, and the like; environmental factors such as temperature, humidity, atmosphere, illumination, cleanliness and the like in the manufacturing process can cause unstable quality of the production process and various errors. These various differences and production errors can cause the response of the sensor to the target marker to be different, thereby affecting the accuracy and reliability of the detection result. It is often desirable to reduce or even eliminate errors due to sensor variances through sensor calibration. At present, along with iteration of technology and importance on user experience, more and more sensors adopt a scheme of calibration in production, and a calibration process of a user is canceled, so that complicated operation of the user is avoided, and meanwhile, sensor errors or failures caused by human errors can be greatly avoided. The sensor can be subjected to standard tests in the production process, so that individual performance and parameters calculated by results of the sensor, such as sensitivity, background signal bias, linearity in a measurement range and the like of the sensor, and long-term performance of the sensor or key parameters of a sensor model, such as sensor offset parameters, sensor attenuation rate and the like, can be determined according to priori knowledge and a model. These parameters as described above may be applied to the calculation of the physiological readings from the sensor electrical signals to improve the accuracy of the results and the accuracy of the analysis.

In addition, some of the drives of the sensors also require personalized settings due to the individual differences of the sensors. Such as the operating voltage of the sensor and the reactive current detection circuit configuration parameters. Depending on the production lot (material, process, quality may differ) or individual differences in electrode potential, the voltage applied across the sensor electrodes may need to be adjusted for different sensors to achieve a standardized, uniform drive of the sensors. Different sensors often have different reactive currents, and in order to achieve optimal measurement, the measurement circuit configuration of the electrical signal may need to perform certain tuning treatments, such as amplification level and amplification factor, voltage division ratio, filtering parameters, and the like of the circuit.

It can be seen that due to the existence of the inter-sensor variation, a set of personalized parameters (including, but not limited to, sensor number, calibration information, sensor drive information, sensor detection configuration parameters) needs to be obtained and maintained for each sensor (or each group, each lot) so that it can be used for sensor drive, sensor measurement, physiological index calculation, etc. The measuring device needs to acquire the sensor code and its information while the sensor is connected to the measuring device so that the measuring process can be performed and the accuracy of the measurement and the accuracy of the analysis are ensured. How to number and identify each sensor and how to save and read sensor-related parameter information is a challenge.

At present, a sensor coding mode generally adopts a mode of design realization and post-production labeling widely. The sensor is added with coding information in design, and the sensor is manufactured in the production process, so that the number can be allocated from the production process of the sensor, the trouble of adding marks of the later-stage sensor is avoided, and meanwhile, the confusion of the sensor caused by human errors possibly existing in the later-stage mark adding process is avoided. However, this approach has a major problem of non-uniqueness of the number. In the sensor production process, production molds such as sensor design files and photomasks are often multiplexed, and the molds cannot be designed for each sensor independently, so that the condition that sensor codes are identical among different batches and even among batches is unavoidable, and additional information is often required to uniquely determine targets, such as determining a single sensor by adding information such as production batch numbers; the sensors of a certain lot are determined by date.

The sensor code identification generally adopts a mode of manual input of a user or automatic identification of equipment. Many products today require the user to manually enter the sensor number into the terminal or App, either by way of a cell phone scanning a bar code (or two-dimensional code), or by way of a dedicated code card (or code bar). Although some approaches may reduce the level of complexity of user input and reduce the probability of user error to some extent, the potential for bar code (or two-dimensional code or code card or code bar) abuse is still not entirely avoided.

The automatic identification of the device is performed in such a way that when the sensor is connected to the device, or the sensor and the device are of integral design but the device automatically reads the number of the sensor when it is first used, the sensor is identified without intervention and operation by the user. Currently, some patents acquire sensor codes or sensor parameter information by integrating wires with different lengths and thicknesses or groups of connecting wires or introducing different electrical elements on the sensor, and then measuring electrical parameters or proportions (such as resistance, capacitance, inductance, logic on-off and the like) among different connecting points. Such sensors all require the device to identify the code via an electrical connection, require a certain number of measurement connection points, occupy a large area of the sensor, and furthermore can only record limited code information. If the amount of information needs to be increased, the complexity of the sensor design and the sensor area can be greatly increased. Still other devices record sensor codes and information by printing different patterns (such as bar codes and two-dimensional codes) or different color blocks on the sensor, and the corresponding devices of the sensor need to integrate additional optical detection modules inside for identifying the code patterns, so that the volume, the power consumption and the cost can be increased significantly.

In addition, in the above scheme, numbering information is often added in the process flow of electrode production, such as sensor micro-nano processing flow, silk screen electrode flow, and the like, and subsequent surface modification, coating, and other information, calibration information of the finished body sensor, and the like cannot be added and recorded on the sensor.

In the individual information storage of the sensor, because of the limitation of the production and manufacture of the sensor, an upper computer or cloud storage mode is often adopted at present, and after the sensor code is identified, the device is communicated with a database, so that the information of the sensor (or type, group and batch) is further acquired and used for measurement and calculation. This is greatly limited by the networking of the devices, or the local data storage of the devices, which affects the use of the user.

Problems of the prior art are as follows:

the non-uniqueness of the sensor code. In the sensor production process, production molds such as sensor design files, photomasks and the like are often multiplexed, and the molds cannot be designed for each sensor independently, so that the condition that the sensor codes are identical inevitably exists, and additional information is often needed to uniquely determine a target;

only limited encoded information can be recorded, and if the amount of information needs to be increased, the complexity of the sensor design and the sensor area can be greatly increased.

The scheme of realizing coding by designing wires with different lengths and thicknesses or a plurality of groups of connecting wires occupies a large area of the sensor, and a plurality of connecting points are additionally arranged between the sensor and equipment, so that the size of the connector is increased;

there is a limit to the amount of information, and individual parameter information of the sensor, such as calibration information of the sensor, sensor driving information, sensor detection information, and configuration parameters, cannot be recorded;

in the production flow, the information of the subsequent process of the numbering can not be added and recorded on the sensor, for example, after the electrode forming is completed, the surface modification, the coating information and the calibration information of the sensor can not be recorded.

Disclosure of Invention

In order to solve the problems, the utility model provides a coding sensor which can be used for coding and information setting and reading in the production and use processes of various biological sensors and electrochemical sensors, realizes the distribution, storage and identification of unique codes of the sensors and the storage and reading of sensor parameters, and has the specific technical scheme that:

the utility model provides a code sensor, includes the sensor body, be equipped with sensing unit and a plurality of sensing pin on the sensor body, still include: the substrate is provided with a plurality of sensing pins; an integrated circuit disposed on the substrate for storing sensor information; the coding pins are arranged on the substrate, the number of the coding pins is not less than two, and the coding pins are connected with the integrated circuit; and the packaging layer is arranged on the substrate, and the integrated circuit and the coding pins are both positioned in the packaging layer.

Preferably, the coding pin comprises a signal pin and a ground pin, and the signal pin and the ground pin are connected with the integrated circuit.

Preferably, the coding pin is strip-shaped or circular.

Preferably, the signal pin is used for communication and power supply.

Preferably, the integrated circuit includes a power supply unit, the power supply unit including: the diode is connected with the signal pin; the electricity storage capacitor is respectively connected with the grounding pin and the diode; and a VDD line connected to the storage capacitor and the diode, the VDD line supplying power to each unit inside the integrated circuit.

Preferably, the integrated circuit includes a memory unit that includes at least one disposable programming region for writing sensor codes, related information, and weight parameters.

Preferably, the integrated circuit includes a memory cell, the memory cell including: the disposable programming areas are not less than one and are used for writing sensor codes; and repeated programming areas, wherein at least one repeated programming area is used for writing configuration parameters and related information of the sensor.

Wherein the integrated circuit further comprises: the communication control unit is connected with the storage unit; and the identity verification and communication verification unit is connected with the communication control unit.

Further, the device further comprises a conductive silica gel column, wherein the conductive silica gel column is fixed on the substrate and connected with the coding pins.

Compared with the prior art, the utility model has the following beneficial effects:

1. the problem that the sensor codes are not unique in the traditional scheme is solved. By embedding an OTP write-once memory of 8 bytes or more, a unique code could theoretically be provided for 18446744073709551616 or more sensors.

2. The method not only can realize unique coding and sensor identification of a single sensor, but also can store and record related information of the sensor, including but not limited to coding, production flow information, calibration information, sensor driving information, sensor detection information, configuration parameters and the like of the sensor, and can conveniently expand more information or parameters; this is not possible with current flow sensor coding schemes.

3. All information of the sensor can be stored locally, and no sensor code or information is mixed.

4. The sensor identification flow is uploaded to the device for measurement when connected to the device, so that no internet connection is needed, and the limitation of networking and the delay of communication and the possible risk in communication can be avoided.

5. All information of the sensor is stored on the sensor, so that the identification and information reading of the sensor can be completed without user intervention or operation, better user experience can be provided, and a plurality of problems caused by misoperation of a user are avoided. Furthermore, the opening can avoid malicious attacks which may exist outside.

6. The utility model only occupies a very small area of the sensor, about 5mm ² Or smaller, to be far smaller than the traditional scheme, the unique coding of the sensor can be realized, and meanwhile, the storage of a large amount of sensor related information, measurement configuration parameters and the like is increased. In addition, the design of the sensor, the size and the complexity of the sensor are not affected.

7. No additional power is required, and the signal pin can be set to a low level after the sensor identification process is completed, so that no energy is consumed.

Drawings

FIG. 1 is a schematic diagram of an integrated circuit of an encoder sensor on one side of a sense pin;

FIG. 2 is a schematic diagram of an integrated circuit encoding a sensor between sense pins;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram with the addition of the VDD pin;

FIG. 5 is a schematic diagram of the structure of the encoding pin with a circular shape;

FIG. 6 is a block diagram of an integrated circuit;

FIG. 7 is a flow chart of one embodiment of a method of setting codes and information for a code sensor;

FIG. 8 is a flow chart of another embodiment of a method of setting codes and information for a coded sensor;

fig. 9 is a flow chart of a method of encoding a sensor and reading information.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings.

The utility model provides a coding sensor aiming at a mass-produced biological sensor or an electrochemical sensor, wherein an integrated circuit 4 is arranged on the sensor to store the sensor code, so that the uniqueness of the sensor code is realized, the sensor code is not limited by a process, is not influenced by the area or the volume of the sensor, is not influenced by the structural design of the sensor, can record large information quantity, can increase information later, does not need user intervention when in use, and an upper computer automatically identifies the sensor code and automatically reads related parameters for driving and measuring. And the method is free from the limitation of Internet connection and a remote database, and the possibility of being attacked in the process of interacting with the remote data is avoided.

Because of the large memory space within the integrated circuit 4, more data can be recorded, the sensor can be uniquely encoded, and sensor related information and measurement parameters can be stored, including but not limited to, sensor encoding, production flow information, calibration information, sensor driving information, sensor detection configuration parameters, and the like. The production flow information comprises material number, formula number, coating information, process number, batch, sensitivity of the sensor, background signal bias, linearity and the like.

An integrated circuit 4 or chip which stores the unique sensor code and the information and measured parameters of the sensor is integrated on the surface of the biological sensor or the electrochemical sensor, in particular on the connection pin end. The integrated circuit 4 contains a memory area which can be programmed once or can be integrated with a memory area which can be programmed many times. The sensor-related information collected during the sensor production phase and a unique code are written into the one-time-programmable memory area, and the sensor drive information, detection information, configuration parameters, etc. are written into the one-time-programmable memory area or the memory area that can be programmed multiple times. When a sensor is mounted to the detection device, the host computer automatically recognizes the sensor and reads all the information for measurement.

Considering that a typical biosensor or electrochemical sensor is small and light, the above integrated circuit 4 is preferably an ASIC integrated circuit 4 die, i.e. an unpackaged integrated circuit 4 chip, which is typically about 0.7mm thick and can be designed to be 2mmX2mm or less in size, and can be integrated into the sensor connection pin end, placed in the middle or on one side of the connection pin of the sensor electrode.

Specifically, as shown in fig. 1 to 6, an encoding sensor includes a sensor body, a substrate 2, an integrated circuit 4, encoding pins 3, and an encapsulation layer 5. The sensor body is provided with a sensing unit 1 and a plurality of sensing pins 11, and the sensing pins 11 are connected with the sensing unit 1 through sensing connecting wires. The present embodiment is described with a sensor having two sense pins 11, and in the case of a multi-electrode sensor, a plurality of sense pins 11 are provided. The integrated circuit 4, the code pins 3 and the sense pins 11 are all arranged on the substrate 2. The code pins 3 are provided with two signal pins 31 and ground pins 32, and the signal pins 31 and the ground pins 32 are connected with the integrated circuit 4 through the code leads 6, wherein the signal pins 31 and the ground pins 32 are strip pins. The signal pins 31 are used for communication and also can be used as power supply pins to introduce peripheral power into the integrated circuit 4 and supply power to various units in the integrated circuit 4. An encapsulation layer 5 is provided on the substrate 2, the integrated circuit 4 and the code pins 3 being located within the encapsulation layer 5. The coding pin 3 can also be round, is convenient to insert into read-write equipment, and can be connected with a conductive silica gel column, a conductive spring or a spring needle in read-write arrangement.

The integrated circuit 4 is attached to the surface of the substrate 2 and is connected by wire bonding, i.e. the code pins 3 are also connected to the integrated circuit 4 by means of code leads 6. In particular, the contacts on the integrated circuit 4 are connected to the external connection leads by means of very fine wires, such as gold, silver, aluminum, etc., with a diameter of about 0.015mm to 0.035mm, by means of hot extrusion or ultrasound or a combination of both. The whole is encapsulated by insulating resin, so that certain mechanical strength and good insulativity are provided. In order to achieve better insulation, a parylene coating can be performed on the surface.

The integrated circuit 4 comprises a power supply unit 41, a storage unit, a communication control unit 44, an authentication and communication verification unit 45. The power supply unit 41 includes a diode, a storage capacitor, and a VDD line, the diode being connected to the signal pin 31; the storage capacitor is respectively connected with the grounding pin 32 and the diode; the VDD line is connected to the storage capacitor and the diode, and supplies power to each cell inside the integrated circuit 4. The memory unit includes at least one disposable writing area 42, and the disposable writing area 42 is used for writing sensor codes, related information and counterweight parameters. Preferably, the memory unit includes a write-once area 42 and a write-again area 43, and at least one write-once area 42 is used for writing the sensor code; the number of the repeated writing areas 43 is not less than one, and the repeated writing areas are used for writing configuration parameters and related information of the sensor. The communication control unit 44 is connected to the power supply unit 41, the storage unit connection and the authentication and communication verification unit 45.

In some embodiments, as shown in fig. 4, the VDD line inside the integrated circuit 4 may be externally arranged, so as to support an application scenario that may be externally powered, where an VDD pin 33 is externally connected. The positions of the pins of the integrated circuit 4 can be interchanged without affecting the functional implementation thereof.

The ground pin 32 and the signal pin 31 are connected to a power supply circuit inside the integrated circuit 4, and can obtain electric energy when the signal pin 31 is at a high level and store the electric energy in an internal storage capacitor. The power obtained is supplied to the respective units inside through the internal VDD line. The signal pins 31 are simultaneously connected to the internal single-wire communication control unit 44, and bidirectional communication is possible. The communication mode can be realized by adopting a common single-wire communication protocol. The authentication and communication verification unit 45 may ensure confidentiality and integrity of the communication. The write-once area 42 is an OTP write-once area, and the repeat write-once area 43 is an MTP write-many area. The unique code of the sensor may be written to a one-time OTP memory area when written to, and the space may be 8 bytes or more. 8 bytes can be used as a unique code for 18446744073709551616 sensors. The information of the sensor in the production process can be stored in an OTP one-time programming storage area, such as material number, formula number, coating information, process number, batch, sensitivity of the sensor, background signal bias, linearity and the like. The unique numbers of the information and the sensor cannot be modified after the information and the unique numbers of the sensor are written into the sensor for the first time, so that the uniqueness of the sensor codes and the matching property between the sensor information and the sensor are ensured. Other sensor driving information and sensor detection configuration parameters can be programmed into an OTP one-time programming storage area, or into a storage area which can be read and written for many times by the MTP, and the possibility of subsequent upgrading can be kept according to the optimization of a sensor algorithm model.

The various information of the sensor can be collected and recorded during the production process of the sensor, then written into the code integrated circuit 4 by a special fixture, and then the code integrated circuit 4 is wire-bonded and packaged on the sensor. Alternatively, the coded integrated circuit 4 may be wire bonded and packaged onto the sensor and then the information burned through the single wire interface.

In some embodiments, as shown in fig. 5, the encoding pin 3 is circular, and the circular encoding pin can be conducted with a conductive silica gel column on the read-write device, so as to realize data transmission.

The coding sensor provided by the utility model can realize unique coding of a single sensor in the mass production process, stores relevant information and measurement parameters of the sensor, does not need user intervention when in use, and automatically identifies the sensor code and reads relevant parameters to drive and measure, and simultaneously avoids the limitation of Internet connection and a remote database, thereby avoiding the possibility of confusion of coding and attack in the process of interacting with remote data when in use.

As shown in fig. 7, a method for setting codes and information of a code sensor includes the steps of:

s110, producing a sensor;

s120, detecting the quality control form of the sensor;

s130, judging whether the sensor passes quality control detection, if so, entering S140, otherwise, judging that the sensor is a defective product;

s140, performing quality control performance test on the sensor;

s150, judging whether the sensor passes the quality control check, if so, entering S160, otherwise, judging that the sensor is a defective product;

s160, assigning a unique code to the sensor;

s170, determining sensor production information, calibration information and measurement parameter information;

s180, pasting and bonding an integrated circuit to the sensor;

s190, integrally packaging the integrated circuit to form a packaging layer;

s200, programming sensor codes, production information, calibration information and measurement parameters into an integrated circuit through a programming tool;

s210, reading all burnt information from the integrated circuit through a burning tool;

s220, judging whether the read information and the written information are completely consistent, if so, entering S230, otherwise, judging that the sensor is a defective product;

s230, judging that the sensor is good.

The integrated circuit is packaged on the sensor, and then the sensor coding, the production information, the calibration information and the measurement parameter information are burnt, so that the flow is simple, and the information can be confirmed only once.

As shown in fig. 8, a method for setting codes and information of a code sensor includes the steps of:

s410, producing a sensor;

s420, detecting the quality control form of the sensor;

s430, judging whether the sensor passes quality control detection, if so, entering S440, otherwise, judging that the sensor is a defective product;

s440, performing quality control performance test on the sensor;

s450, judging whether the sensor passes the quality control check, if so, entering S460, otherwise, judging that the sensor is a defective product;

s460, assigning a unique code to the sensor;

s470, determining sensor production information, calibration information and measurement parameter information;

s480, programming sensor codes, production information, calibration information and measurement parameters into the integrated circuit through a programming tool;

s490, reading all the burnt information from the integrated circuit through a burning tool;

s500, judging whether the read information and the written information are completely consistent, if so, entering S510, otherwise, judging that the sensor is a defective product;

s510, pasting and bonding an integrated circuit to the sensor;

s520, integrally packaging the integrated circuit to form a packaging layer;

s530, reading all information in the integrated circuit through the coding pins;

s540, judging whether the read information and the written information are completely consistent, if so, entering S550, otherwise, judging that the sensor is a defective product;

s550, the sensor is marked as good products.

Firstly, the sensor codes, production information, calibration information and measurement parameter information are programmed on an integrated circuit, and then the sensor codes, the production information, the calibration information and the measurement parameter information are packaged on the sensor; the method can ensure that the packaged integrated circuit is good, prevent information from being tampered and improve the safety. Because the integrated circuit is firstly programmed, the programming equipment is different from the programming and reading equipment of the complete sensor, and the user is prevented from modifying the information.

As shown in fig. 9, a method for reading codes and information of a code sensor includes the steps of:

s710, connecting the sensor with a reading device, and starting to identify the sensor;

s720, setting a signal pin to be at a high level and keeping the signal pin for a period of time;

s730, sending an identity key to the read-write equipment and receiving confirmation information;

s740, judging whether the authentication is passed, if so, entering S760, otherwise, exiting the sensor identification;

s750, setting a signal pin to be at a high level and keeping the signal pin for a period of time;

s760, sending a command for reading the sensor code and receiving the sensor code;

s770, setting a signal pin to be high level and keeping the signal pin for a period of time;

s780, sending a command for reading the sensor related information and receiving the sensor related information;

s790, the signal pin is set to high level and held for a period of time.

S800, sending a command for reading sensor configuration parameters and receiving the sensor configuration parameters;

s810, exiting the sensor identification.

After the sensor is connected to the device, the device will first initiate a sensor identification procedure during power-up operation, as follows. The signal pin 31 is set to be high and held for a period of time t, which is greater than or equal to the time that sufficient energy storage can be completed, in order to charge the encoding integrated circuit 4 via the signal pin 31. The single-wire communication protocol above can adopt some digital coding modes to avoid the signal wire being in low level for a long time, and the coding modes can be Manchester coding, pulse width modulation PWM, pulse position modulation PPM and the like. In addition, in the step of transmitting a read command and receiving sensor information, an operation in which one or more signal pins 31 are high and held for a period of time t may be inserted to ensure sufficient energy. After the sensor identification process is completed, the signal pin 31 can be set and maintained in a low state, so as to save system power.

The user side can read the information of the sensor through the read-write equipment.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of the specification and practice of the utility model without the need for inventive faculty, and are within the scope of the claims.

Claims (8)

1. The utility model provides a code sensor, includes the sensor body, be equipped with sensing unit (1) and a plurality of sensing pin (11) on the sensor body, its characterized in that still includes:

a substrate (2), wherein a plurality of sensing pins (11) are arranged on the substrate (2);

-an integrated circuit (4), the integrated circuit (4) being arranged on the substrate (2) for storing sensor information;

the coding pins (3) are arranged on the substrate (2), the number of the coding pins (3) is not less than two, and the coding pins (3) are connected with the integrated circuit (4); a kind of electronic device with high-pressure air-conditioning system

And the packaging layer (5) is arranged on the substrate (2), and the integrated circuit (4) and the coding pins (3) are both positioned in the packaging layer (5).

2. A coded sensor according to claim 1, characterized in that the coded pins (3) comprise a signal pin (31) and a ground pin (32), the signal pin (31) and the ground pin (32) being connected to the integrated circuit (4).

3. A coded sensor according to claim 2, characterized in that the coded pins (3) are elongated or circular.

4. A coded sensor according to claim 2, characterized in that the signal pin (31) is used for communication and power supply.

5. A coded sensor according to claim 2, characterized in that the integrated circuit (4) comprises a power supply unit (41), the power supply unit (41) comprising:

a diode connected to the signal pin (31);

the electricity storage capacitor is respectively connected with the grounding pin (32) and the diode; a kind of electronic device with high-pressure air-conditioning system

And a VDD line connected to the storage capacitor and the diode, the VDD line supplying power to each cell inside the integrated circuit (4).

6. An encoder sensor according to claim 1, characterized in that the integrated circuit (4) comprises a memory unit, which memory unit comprises at least one disposable writing area (42), which disposable writing area (42) is used for writing sensor codes, production information, calibration information and measurement parameters.

7. The encoder sensor according to claim 1, characterized in that the integrated circuit (4) comprises a memory unit comprising:

the system comprises a disposable programming area (42), wherein at least one disposable programming area (42) is used for writing sensor codes and writing one or more of production information, calibration information and measurement parameters; a kind of electronic device with high-pressure air-conditioning system

And the repeated programming areas (43) are not less than one and are used for writing one or more of production information, calibration information and measurement parameters.

8. The encoder sensor according to claim 6 or 7, characterized in that the integrated circuit (4) further comprises:

a communication control unit (44), the communication control unit (44) being connected to the storage unit; a kind of electronic device with high-pressure air-conditioning system

-an authentication and communication verification unit (45), said authentication and communication verification unit (45) being connected to said communication control unit (44).

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