A nitrogen-oxygen sensor intelligent activation system and method

Abstract

The application provides a nitrogen-oxygen sensor intelligent activation system and method, which comprises a field device, an upper computer, and a power supply; wherein the field device comprises a nitrogen-oxygen sensor and a lower computer for controlling the nitrogen-oxygen sensor, the lower computer is in communication connection with the upper computer, the lower computer is used for collecting and uploading the nitrogen-oxygen sensor information, and controls the nitrogen-oxygen sensor according to the instruction of the upper computer, the upper computer is used for receiving information and automatically issuing an instruction according to preset or received information, and the power supply is used for powering the entire system. Through the system and the matching method, the technical problems that the activation process of the nitrogen-oxygen sensor in the prior art cannot be quantified and controlled, the working parameters cannot be monitored, problems in the process cannot be monitored in real time, and whether the sensor is stable and the activation is completed can be verified only after the activation is completed are solved, and the effect of conveniently monitoring the activation process and improving the automation degree is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of testing and production of automobile nitrogen oxygen sensors, and particularly relates to an intelligent activation system and method for nitrogen oxygen sensors. BACKGROUND

[0002] The nitrogen oxygen sensor can detect the concentration of nitrogen oxides in vehicle exhaust. In the prior art, the production process of the nitrogen oxygen sensor requires placing the finished nitrogen oxygen sensor in a preset nitrogen oxide concentration to calibrate the detection value of the nitrogen oxygen sensor, that is, writing the current AD value of the sensor at different measurement pumps in different concentration atmospheres into the hardware program to achieve the effect of detecting different concentration atmospheres. The nitrogen oxygen sensor that passes the calibration can be installed on the vehicle for use. However, the newly produced nitrogen oxygen sensor cannot be directly calibrated. Due to the process and material of the nitrogen oxygen ceramic chip in the nitrogen oxygen sensor, the electrode of the chip is not stable when working, which directly leads to the instability of the nitrogen oxygen sensor. If the nitrogen oxygen sensor is directly calibrated and then installed for use, detection errors are likely to occur. The prior art calibrates the nitrogen oxygen sensor by heating it to the working temperature range for a long time to stabilize the material, electrode and characteristics of the nitrogen oxygen ceramic chip in the nitrogen oxygen sensor in the long-term work until the parameters are stable in an acceptable range, that is, the activation is completed.

[0003] In summary, in the prior art, the traditional activation process of the nitrogen oxygen sensor is unquantifiable and uncontrollable, all working parameters cannot be monitored, problems in the activation process cannot be monitored in real time, and whether the sensor is stable and the activation is completed can only be verified after the activation is completed. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application provides an intelligent activation system and method for nitrogen oxygen sensors, which solves the technical problem that the traditional activation process is unquantifiable and uncontrollable.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] An intelligent activation system for nitrogen oxygen sensors comprises a field device, an upper computer and a power supply.

[0007] The field device comprises a nitrogen oxygen sensor and a lower computer for controlling the nitrogen oxygen sensor, the lower computer is in communication connection with the upper computer, the lower computer is used for collecting and uploading information of the nitrogen oxygen sensor and controlling the nitrogen oxygen sensor according to the instruction of the upper computer, the upper computer is used for receiving information and automatically issuing instructions according to preset or received information, and the power supply is used for supplying power to the whole system.

[0008] Further, the field device further comprises an activation rack for placing the nitrogen oxygen sensor.

[0009] Further, the host computer and the lower computer communicate using a CAN communication protocol.

[0010] An intelligent activation method for a nitrogen oxygen sensor, based on the above-mentioned intelligent activation system for a nitrogen oxygen sensor, comprising the following steps:

[0011] S1: After booting, the lower computer collects and uploads the activation parameters of the nitrogen oxygen sensor to the host computer in real time;

[0012] S2: The host computer sets the preset activation parameters, including the sensor control parameters of each activation stage, the activation time and the activation parameter determination range of each stage;

[0013] S3: The host computer controls the lower computer to enter the corresponding activation stage according to the preset activation time;

[0014] S4: The host computer writes the preset control parameters corresponding to this stage into the lower computer;

[0015] S5: The lower computer controls the nitrogen oxygen sensor to heat to the corresponding temperature point according to the preset sensor control parameters of this stage, and the host computer monitors the activation parameters of the nitrogen oxygen sensor in real time: vPower: nitrogen oxygen sensor power supply voltage AD value, vip0: nitrogen oxygen ceramic chip common electrode and main pump voltage AD value, Rh: nitrogen oxygen ceramic chip heating wire resistance, Ratio: nitrogen oxygen sensor temperature, Hstep: nitrogen oxygen sensor heating stage, ip0: nitrogen oxygen ceramic chip main pump current AD value, ip1: nitrogen oxygen ceramic chip auxiliary pump current AD value, ip2: nitrogen oxygen ceramic chip measurement pump current AD value, Vpwm: nitrogen oxygen ceramic chip main pump voltage AD value, Hpw: nitrogen oxygen sensor heating pulse, Vref: nitrogen oxygen ceramic chip reference electrode voltage AD value.

[0016] S6: When the preset activation time of this stage is reached, the host computer intelligently judges according to the activation parameters of the nitrogen oxygen sensor and the preset activation parameter determination range and gives an activation result prompt, and then enters the next activation stage.

[0017] S7: The host computer software will automatically repeat steps S3-S6 until all activation stages are completed.

[0018] Further, step S1 further comprises that the host computer detects and displays the connected sensors, ensuring that each sensor can be normally identified, and the host computer displays the ID number of the connected sensors and turns green to prompt.

[0019] Furthermore, in step S2,

[0020] The sensor control parameters for each activation stage include Ratio: operating temperature of the nitrogen and oxygen sensor, IP1: AD value of auxiliary pump current of nitrogen and oxygen ceramic chip, and V1: AD value of reference electrode and auxiliary pump voltage.

[0021] The activation time includes: Time: stage activation time, in hours;

[0022] The activation parameters in the activation parameter determination range for each stage include: vPower: AD value of the nitrogen-oxygen sensor power supply voltage, vip0: AD value of the common electrode and main pump voltage, ip0: AD value of the nitrogen-oxygen ceramic chip main pump current, ip1: AD value of the nitrogen-oxygen ceramic chip auxiliary pump current, ip2: AD value of the nitrogen-oxygen ceramic chip measuring pump current, Vpwm: AD value of the nitrogen-oxygen ceramic chip main pump voltage, Hpw: heating pulse of the nitrogen-oxygen sensor, and Vref: AD value of the nitrogen-oxygen ceramic chip reference electrode voltage.

[0023] Furthermore, step S4 also includes executing this step after receiving the start command. After the parameters are written, the host computer will provide a prompt based on the feedback from the slave computer, including whether the writing was successful or failed.

[0024] Furthermore, step S5 also includes that if any parameter exceeds the activation parameter judgment range of this stage, it is considered that the parameter is out of limit, and the parameter that is out of limit will be prompted in real time and the specific parameter that is out of limit will be indicated.

[0025] Furthermore, step S5 also includes the host computer rotating the current activation parameters of each of the nitrogen and oxygen sensors, and being able to receive the input sensor ID number to display the data of the specified sensor.

[0026] Furthermore, after the entire activation process is completed, the host computer will display the final activation result of the nitrogen and oxygen sensor, including the activation result of each stage, the specific out-of-limit parameters of the sensor, and the abnormal prompts of the sensor. During the entire activation process, if there are problems such as sensor disconnection or poor contact, the corresponding sensor connection interface on the host computer interface will turn gray to indicate the problem.

[0027] The beneficial effects of this invention are:

[0028] This invention provides an intelligent activation system and method for a nitrogen and oxygen sensor. The activation process of the nitrogen and oxygen sensor achieves strict control over parameters and time. The overall activation process is completed by controlling parameters such as the heating temperature, pump voltage, and pump current of the nitrogen and oxygen sensor, as well as quantified parameter indicators. This allows for monitoring of the entire activation process and provides real-time alerts for any problems that arise. The overall activation data can also be saved locally for easy future tracking.

[0029] Other beneficial effects of the embodiments of the present invention will be further described below. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the entire system composition in an embodiment of the present invention;

[0031] Figure 2 This is a flowchart illustrating the entire system in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the host computer software monitoring the sensor connection status in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram illustrating the writing parameters and parameter over-limit prompts during the device opening and activation process of the host computer software in an embodiment of the present invention.

[0034] Figure 5 This is a schematic diagram of the interface for setting activation stage parameters and activation determination parameter ranges in the host computer software in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the data viewing and download page of the host computer software in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the nitrogen and oxygen sensor activation data exceeding the limit prompt (judge column) in an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of data when the nitrogen and oxygen sensor begins to activate in an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the data after the nitrogen and oxygen sensor has been activated for 24 hours in an embodiment of the present invention. Detailed Implementation

[0039] To make the technical solutions and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be fully described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] The activation of the nitrogen oxygen sensor is essentially to control the nitrogen oxygen ceramic chip in the sensor within a certain working temperature range to maintain good stability, and to make the chip tend to be stable state through long time work. In the traditional activation process, all working parameters cannot be monitored, and problems in the activation process cannot be monitored in real time. Only after the activation is completed, whether the sensor is stable and the activation is completed can be verified, that is, a black box test.

[0042] To solve the above problems, the embodiment of the present application proposes an intelligent activation system for a nitrogen oxygen sensor, comprising: field equipment, an upper computer, and a power supply; wherein the field equipment comprises a nitrogen oxygen sensor and a lower computer for controlling the nitrogen oxygen sensor, the lower computer is in communication connection with the upper computer, the lower computer is used for collecting and uploading information of the nitrogen oxygen sensor, and the nitrogen oxygen sensor is controlled according to the instruction of the upper computer, the upper computer is used for receiving information and automatically issuing instructions according to preset or received information, and the power supply is used for powering the entire system; the field equipment further comprises an activation rack for placing the nitrogen oxygen sensor; the upper computer and the lower computer communicate using a CAN communication protocol.

[0043] The embodiment of the present application also proposes an intelligent activation method for a nitrogen oxygen sensor, based on the above-mentioned intelligent activation system for a nitrogen oxygen sensor, comprising the following steps:

[0044] S1: After starting, the lower computer collects and uploads the activation parameters of the nitrogen oxygen sensor to the upper computer in real time; further, the upper computer detects and displays the connected sensors to ensure that each sensor can be normally identified, and the upper computer displays the ID number of the connected sensor and turns green to prompt.

[0045] S2: The upper computer sets preset activation parameters, including sensor control parameters of each activation stage, activation time, and activation parameter determination range of each stage; further, the sensor control parameters of each activation stage include Ratio: nitrogen oxygen sensor working temperature, IP1: nitrogen oxygen ceramic chip auxiliary pump current AD value, V1: reference electrode and auxiliary pump voltage AD value; the activation time includes: Time: stage activation time, unit h; and the activation parameters in the activation parameter determination range of each stage include: vPower: nitrogen oxygen sensor power supply voltage AD value, vip0: common electrode and main pump voltage AD value, ip0: nitrogen oxygen ceramic chip main pump current AD value, ip1: nitrogen oxygen ceramic chip auxiliary pump current AD value, ip2: nitrogen oxygen ceramic chip measurement pump current AD value, Vpwm: nitrogen oxygen ceramic chip main pump voltage AD value, Hpw: nitrogen oxygen sensor heating pulse, Vref: nitrogen oxygen ceramic chip reference electrode voltage AD value.

[0046] S3: The upper computer controls the lower computer to enter the corresponding activation stage according to the preset activation time.

[0047] S4: The host computer writes the preset control parameters corresponding to this stage to the slave computer; further, this step is executed after receiving the start instruction, and after the parameters are written, the host computer will give a prompt according to the feedback of the slave computer, including writing success and writing failure.

[0048] S5: The slave computer controls the nitrogen oxygen sensor to heat to the corresponding temperature point according to the preset sensor control parameters of this stage, and the host computer monitors the activation parameters of the nitrogen oxygen sensor in real time: vPower: nitrogen oxygen sensor power supply voltage AD value, vip0: nitrogen oxygen ceramic chip common electrode and main pump voltage AD value, Rh: nitrogen oxygen ceramic chip heating wire resistance value, Ratio: nitrogen oxygen sensor temperature, Hstep: nitrogen oxygen sensor heating stage, ip0: nitrogen oxygen ceramic chip main pump current AD value, ip1: nitrogen oxygen ceramic chip auxiliary pump current AD value, ip2: nitrogen oxygen ceramic chip measurement pump current AD value, Vpwm: nitrogen oxygen ceramic chip main pump voltage AD value, Hpw: nitrogen oxygen sensor heating pulse, Vref: nitrogen oxygen ceramic chip reference electrode voltage AD value. Further, if the parameters exceed the activation parameter determination range of this stage, it is considered that the parameters are out of limit, and the out of limit will be prompted in real time and the specific out of limit parameters are indicated.

[0049] Further, step S5 further includes that the host computer will broadcast the current activation parameters of each nitrogen oxygen sensor, and can receive the input sensor ID number to display the data of the specified sensor.

[0050] S6: When the preset activation time of this stage is reached, the host computer intelligently judges according to the activation parameters of the nitrogen oxygen sensor and the preset activation parameter determination range and gives an activation result prompt, and then enters the next activation stage.

[0051] S7: The host computer software will automatically repeat steps S3-S6 until all activation stages are completed.

[0052] Further, after the completion of the entire activation process, the host computer will display the final activation result of the nitrogen oxygen sensor, including the activation result of each stage, the specific out of limit parameters of the sensor and the abnormal prompt of the sensor. During the entire activation process, if there are problems such as sensor disconnection and poor contact, the sensor connection interface corresponding to the host computer interface will be grayed out to prompt.

[0053] The working principle and method steps of the nitrogen oxygen sensor intelligent activation system of the embodiment of the application are specifically described as follows:

[0054] 1. The entire activation system is composed of field devices (activation rack, nitrogen oxygen sensor, power supply, wire, control circuit board - lower computer program), interface and computing devices (upper computer software) and CAN (Controller Area Network) communication devices, as shown in Figure 1 The system communication protocol uses CAN communication protocol.

[0055] 2. After connecting the system in the order of activation rack - nitrogen oxygen sensor - control circuit board - CAN communication device - monitoring computer - total power supply, the sensor activation process can be started.

[0056] 3. Place the sensor on the activation rack and connect the wiring harness and circuit board. Turn on the CAN communication device and the monitoring upper computer software, connect the upper computer and the lower computer, and the lower computer program will upload sensor data in real time to ensure that each sensor can be normally identified. In the CAN protocol, all messages are sent in a fixed format. When more than two units start sending messages at the same time, the priority is determined according to the data frame ID (identifier) sent. Arbitration is compared bit by bit for each bit of the frame ID. The unit that wins the arbitration (is determined to have the highest priority) can continue to send messages, thereby establishing the communication channel of each sensor and establishing a connection with the sensor. The upper computer will display the sensor ID number that has successfully connected and turn green to prompt.

[0057] 4. Use the upper computer software to input the preset activation parameters: sensor control parameters for each activation stage (Ratio: nitrogen oxygen sensor operating temperature, IP1: nitrogen oxygen ceramic chip auxiliary pump current AD value, V1: reference electrode and auxiliary pump voltage AD value), activation time (Time: stage activation time, unit h) and activation parameter (vPower: nitrogen oxygen sensor power voltage AD value, vip0: common electrode and main pump voltage AD value, ip0: nitrogen oxygen ceramic chip main pump current AD value, ip1: nitrogen oxygen ceramic chip auxiliary pump current AD value, ip2: nitrogen oxygen ceramic chip measurement pump current AD value, Vpwm: nitrogen oxygen ceramic chip main pump voltage AD value, Hpw: nitrogen oxygen sensor heating pulse, Vref: nitrogen oxygen ceramic chip reference electrode voltage AD value) determination range. The parameter input interface is shown in Figure 5 .

[0058] 5. After completing steps 1-4, click the upper computer software to start the sensor activation process.

[0059] 6. The lower computer program of the control circuit board will respond to the instructions sent by the upper computer program.

[0060] 7. The lower-level computer program controls various parameters of the heating wire, main pump, auxiliary pump, and measuring pump of the nitrogen-oxygen ceramic chip, including heating voltage, heating current, pump voltage, pump current, and pump closed-loop control. The current AD value uploaded by the measuring pump is the concentration of nitrogen oxides in the atmosphere, and the current AD value uploaded by the main pump is the concentration of oxygen. The lower-level computer automatically converts the current AD value into an atmosphere concentration ratio and uploads it.

[0061] 8. The host computer software will first control the writing of sensor parameters. After sending the writing parameter command, the slave device will respond and upload response data. After the parameters are written, the host computer software interface will display a prompt, including whether the writing was successful or failed.

[0062] 9. After the host computer writes the parameters, it will enter the preset activation stage one. In this stage, the host computer will control the sensor to heat to the temperature point according to the preset parameters. The host computer will monitor the activation parameters of the sensor in real time (vPower: power supply voltage AD value of nitrogen and oxygen sensor, vip0: voltage AD value of nitrogen and oxygen ceramic chip common electrode and main pump, Rh: resistance value of nitrogen and oxygen ceramic chip heating wire, Ratio: nitrogen and oxygen sensor temperature, Hstep: heating stage of nitrogen and oxygen sensor, ip0: voltage AD value of nitrogen and oxygen ceramic chip main pump current, ip1: voltage AD value of nitrogen and oxygen ceramic chip auxiliary pump current, ip2: voltage AD value of nitrogen and oxygen ceramic chip measuring pump, Vpwm: voltage AD value of nitrogen and oxygen ceramic chip main pump, Hpw: heating pulse of nitrogen and oxygen sensor, Vref: voltage AD value of nitrogen and oxygen ceramic chip reference electrode). If any parameter exceeds the limit, a prompt will be given in real time and the specific parameter that exceeds the limit will be indicated. Figure 4 As shown in the image, the interface also displays the current activation parameters for each sensor in a rotating display. The software allows users to enter the sensor ID number to view data for a specific sensor.

[0063] 10. After the preset activation stage is reached, the host computer software will intelligently determine the activation result based on the sensor's activation parameters and the preset parameter range, and provide an activation result prompt, such as... Figure 4 As shown. Then it proceeds to the next activation stage.

[0064] 11. The host computer software will automatically repeat steps 8-10 until all activation stages are completed.

[0065] 12. After the entire activation process is complete, the host computer interface will display the final activation result of the sensor. This includes the activation results of each stage, the specific out-of-limit parameters of the sensor, and any abnormal sensor prompts. During the entire activation process, if there are any issues such as sensor disconnection or poor contact, the corresponding sensor connection interface on the host computer interface will turn gray to indicate this. Figure 3 As shown.

[0066] 13. Throughout the activation process, all data (vpower, rh, vip0, ratio, cip1, ip0, ip1, ip2, hstep, vpwm, hpw, vref, ctrV1, judge, datetime) will be calculated, measured, and uploaded in real time by the lower-level computer program. The upper-level computer will store this data locally on its computer, and the data storage interval can be set by the user. The database used is the free and open-source SQLite, and data can be previewed and downloaded in real time during and after activation. Figure 6 As shown. When viewing the data, you can select the sensor with parameters exceeding the limit, and the analysis of the sensor's key intrinsic parameters is also extremely convenient.

[0067] 14. The final activation result data of this invention are as follows: Figure 7 As shown, the "judge" column in the table represents parameters that exceed the range limits during the activation process. This is achieved by observing the sensor's data throughout the entire activation process: data at the start of sensor activation (e.g.,...) Figure 8 (as shown) and data after 24 hours of activation (as shown) Figure 9 As shown in the comparison, it can be seen that the three intrinsic parameters, ip2, vpwm, and vref, gradually stabilize with increasing activation time. At this point, there are no parameters exceeding the limits in the judge column. This indicates that under long-term operation, the material, electrodes, and characteristics of the nitrogen-oxygen ceramic chip tend to stabilize and are within an acceptable range, thus confirming that the sensor activation is complete. When the sensor parameters are within the parameter range set by the host computer software, the software interface will provide a response prompt after the entire activation stage is completed, and the background color of the sensor number box for successfully activated sensors will turn blue.

[0068] Traditional nitrogen and oxygen sensor activation methods cannot monitor the data of the entire activation process. To determine whether the activation has been successfully completed, the sensor must be tested, such as in a vehicle test, which is very cumbersome and inconvenient.

[0069] The activation process of existing nitrogen and oxygen sensors involves heating the sensor to different operating temperatures for extended periods, with each stage having a different operating time. Throughout the activation process, the sensor's temperature, parameters, and activation time are all uncontrollable factors. Problems such as the sensor stopping heating or inaccurate time control during activation will directly affect the sensor's activation effectiveness.

[0070] This invention uses software to control different activation stages of the nitrogen-oxygen sensor. The time and activation parameters of each activation stage can be preset. After one activation stage is completed, it will automatically enter the next activation stage, which greatly improves the overall activation efficiency of the nitrogen-oxygen sensor. The activation time and stages of the sensor can be strictly and precisely controlled, making the overall activation process stable and controllable.

[0071] The parameter index of the sensor in the activation process of the prior art nitrogen oxygen sensor cannot be monitored and controlled in real time, and only the activation result of the sensor can be estimated, and whether the activation is completed cannot be directly judged. The sensor data and intrinsic parameters in the activation process cannot be analyzed.

[0072] The present application monitors the overall activation process of the nitrogen oxygen sensor, and the overall data of the activation is saved in real time by software, the data of any period can be viewed and downloaded, and the intrinsic parameters of the sensor can be analyzed in real time during the activation process. The software can monitor whether the parameters of the sensor are within the range in real time by setting the preset parameters, and the unqualified parameters will be alarmed and prompted on the software interface. It is extremely convenient to check whether the sensor is running normally and to trace back later. After the overall activation stage is completed, the software will intelligently judge the activation result of the sensor, and the result will be displayed on the interface.

[0073] The prior art nitrogen oxygen sensor activation process has many problems caused by human operation, such as sensor power failure or re-powering caused by poor contact, sensor reset, inaccurate sensor activation time control, etc. When these problems occur, a lot of time is often consumed to locate the problem during the activation process, the real-time performance of the whole system is low, and there is no any feedback. It is extremely tedious to troubleshoot and solve the problem.

[0074] The present application prompts problems in the overall activation process of the nitrogen oxygen sensor, and the software interface will alarm and prompt in time when the sensor connection is abnormal, the sensor is not heated, and the sensor parameter is not normal. The problems in the whole activation process are fed back in time, the problem can be located and solved in time after the problem occurs, and the time cost is greatly reduced.

[0075] In the description of the present application, the terms "one embodiment" and "example" and the like are intended to refer to specific features, structures, or characteristics contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily relative to the relative embodiment or example in a suitable manner.

[0076] It must be pointed out that the above description of the embodiments is not used for limitation but only for helping to understand the core idea of the present application, and any improvement and equivalent alternative of the present application made by those skilled in the art without departing from the principle of the present application also belongs to the protection scope of the claims of the present application.

Claims

1. A nitrogen oxide sensor intelligent activation system, characterized by, Comprise: field device, host computer, power supply; Among them, the field device comprises a nitrogen oxygen sensor and a lower computer for controlling the nitrogen oxygen sensor, the lower computer is in communication connection with the host computer, the lower computer is used for collecting and uploading the nitrogen oxygen sensor information, and the nitrogen oxygen sensor is controlled according to the instruction of the host computer, the host computer is used for receiving information and automatically issuing instructions according to preset or received information, and the power supply is used for power supply of the whole system; The lower computer and the host computer are configured to perform the following operations: after starting, the lower computer collects and uploads the activation parameters of the nitrogen oxygen sensor to the host computer in real time; the host computer sets the preset activation parameters, including the sensor control parameters of each activation stage, the activation time and the activation parameter determination range of each stage; the host computer controls the lower computer to enter the corresponding activation stage according to the preset activation time; the host computer writes the preset control parameters corresponding to the stage into the lower computer; the lower computer controls the nitrogen oxygen sensor to heat to the corresponding temperature point according to the preset sensor control parameters of the stage, and the host computer monitors the activation parameters of the nitrogen oxygen sensor in real time; when the preset activation time of the stage is reached, the host computer intelligently judges and gives an activation result prompt according to the activation parameters of the nitrogen oxygen sensor and the preset activation parameter determination range, and then enters the next activation stage; the host computer software will automatically repeat the above operations until all the activation stages are completed; through the cooperation of the real-time collection and uploading of the activation parameters by the lower computer, the preset parameters, the control stage and the monitoring judgment by the host computer, the activation process of the nitrogen oxygen sensor is strictly controlled in parameters and time, the overall activation process of the nitrogen oxygen sensor is completed by controlling the heating temperature, pump voltage and pump current parameters of the nitrogen oxygen sensor and the judgment of the quantitative parameter index; the overall activation process of the sensor can be monitored, various problems occurring in the activation can be prompted in real time, and the overall data of the activation can also be saved locally for later tracing, so that the activation process is convenient to monitor and the degree of automation is improved.

2. The nitric oxide sensor smart activation system of claim 1, wherein, The field device further comprises an activation rack for placing the nitrogen oxygen sensor.

3. The nitric oxide sensor smart activation system of claim 1, wherein, The host computer and the lower computer communicate using CAN communication protocol.

4. A method of intelligent activation of a nitrogen oxide sensor, characterized in that Based on the nitrogen oxygen sensor intelligent activation system according to any one of claims 1-3, comprising the following steps: S1: after starting, the lower computer collects and uploads the activation parameters of the nitrogen oxygen sensor to the host computer in real time; S2: the host computer sets the preset activation parameters, including the sensor control parameters of each activation stage, the activation time and the activation parameter determination range of each stage; S3: the host computer controls the lower computer to enter the corresponding activation stage according to the preset activation time; S4: the host computer writes the preset control parameters corresponding to the stage into the lower computer; S5: the lower computer controls the nitrogen oxygen sensor to heat to the corresponding temperature point according to the preset sensor control parameters of the stage, and the host computer monitors the activation parameters of the nitrogen oxygen sensor in real time; S6: When reaching the preset activation time of this stage, the host computer makes intelligent judgment according to the activation parameters of the nitrogen oxygen sensor and the preset activation parameter judgment range, and gives an activation result prompt, and then enters the next activation stage; S7: The host computer software will automatically repeat steps S3-S6 until all activation stages are completed.

5. The method of claim 4, wherein, Step S1 also includes that the host computer detects and displays the successfully connected sensors, ensuring that each sensor can be normally identified, and the host computer displays the sensor ID number of the successfully connected sensor and turns green to prompt.

6. The method of claim 4, wherein, In step S2, The sensor control parameters of each activation stage include Ratio: nitrogen oxygen sensor operating temperature, IP1: nitrogen oxygen ceramic chip auxiliary pump current AD value, V1: reference electrode and auxiliary pump voltage AD value; The activation time includes: Time: stage activation time, unit h; The activation parameters in the activation parameter judgment range of each stage include: vPower: nitrogen oxygen sensor power supply voltage AD value, vip0: common electrode and main pump voltage AD value, ip0: nitrogen oxygen ceramic chip main pump current AD value, ip1: nitrogen oxygen ceramic chip auxiliary pump current AD value, ip2: nitrogen oxygen ceramic chip measurement pump current AD value, Vpwm: nitrogen oxygen ceramic chip main pump voltage AD value, Hpw: nitrogen oxygen sensor heating pulse, Vref: nitrogen oxygen ceramic chip reference electrode voltage AD value.

7. The method of claim 4, wherein, Step S4 also includes that after receiving the start instruction, this step is executed, and after parameter writing, the host computer will give a prompt according to the feedback of the lower computer, including writing success and writing failure.

8. The method of claim 4, wherein, Step S5 also includes that if the parameters exceed the activation parameter judgment range of this stage, it is considered as parameter overrun, and the overrun will be prompted in real time and the specific overrun parameter will be indicated.

9. The method of claim 8, wherein, Step S5 also includes that the host computer will broadcast the current activation parameters of each nitrogen oxygen sensor, and can receive the input sensor ID number to display the data of the specified sensor.

10. The method of claim 4, wherein, After the completion of the entire activation process, the host computer will display the final activation result of the nitrogen oxygen sensor, including the activation result of each stage, the specific overrun parameter of the sensor and the abnormal prompt of the sensor. During the entire activation process, if there are problems such as sensor disconnection and poor contact, the sensor connection interface corresponding to the host computer interface will be grayed out for prompt.

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