WO2023231837A1

WO2023231837A1 - Data processing method and apparatus, and device, storage medium and system

Info

Publication number: WO2023231837A1
Application number: PCT/CN2023/095783
Authority: WO
Inventors: 代贝; 吴正; 王元发; 郑文文; 韩霞光
Original assignee: 华为技术有限公司
Priority date: 2022-05-31
Filing date: 2023-05-23
Publication date: 2023-12-07
Also published as: CN117201525A

Abstract

Provided in the embodiments of the present application are a data processing method and apparatus, and a device, a storage medium and a system. The method comprises: receiving a subscription cancellation message, wherein the subscription cancellation message carries identification information of a target sensor; determining the target sensor according to the subscription cancellation message; and sending a second operating state switching instruction to the target sensor, wherein the second operating state switching instruction is used for instructing the target sensor to perform switching from a first operating state to a second operating state, the first operating state is an operating state in which the target sensor performs data measurement in a first measurement period, and the second operating state is an operating state in which the target sensor stops data measurement or performs data measurement in a second measurement period, the second measurement period being greater than the first measurement period. Therefore, the industrial production cost is reduced.

Description

A data processing method, device, equipment, storage medium and system

This application requests the priority of the Chinese patent application submitted to the China Patent Office on May 31, 2022, with the application number 202210610499.2 and the application title "A data processing method, device, equipment, storage medium and system", and its entire content incorporated herein by reference.

Technical field

This application relates to the technical field of industrial security monitoring, and specifically to a data processing method, device, equipment, storage medium and system.

Background technique

In industrial production, safety issues ensure the foundation of industrial production. In order to ensure the safety of production, it is usually necessary to monitor the production environment and production parameters during industrial production. When monitoring the production environment, parameters such as temperature, harmful gas concentration, and wind speed in the environment can be monitored. When monitoring the production process, the operating status of the equipment and the production parameters in each production link can be monitored for detection. For example, when conducting coal mine safety monitoring, on the one hand, it is necessary to monitor environmental parameters such as the concentration, temperature, wind speed, and temperature of various toxic gases underground in coal mines. On the other hand, it is also necessary to detect production parameters such as the coal level in the coal bunker, the water level in the water bunker, and the operating status of the shearer.

At present, existing safety monitoring systems usually include various sensors and substations. Among them, various sensors are set at locations where parameter monitoring is required to monitor corresponding environmental parameters and production parameters. For example, a temperature sensor is used to monitor the temperature in the production environment, a methane sensor is used to monitor the concentration of methane in the production environment, and a wind speed sensor is used to monitor the wind speed in the production environment. After different sensors detect data, they can transmit the monitored data to the substation, and then send the monitored data to other devices for subsequent processing. In some technologies, the sensor uses a battery to power it, and the sensor remains active as long as it is turned on. When the equipment that the sensor needs to test stops running and is not working, the sensor is still in normal working condition and consumes more power, which reduces the working time of the battery and increases the cost of industrial production.

Contents of the invention

In view of this, this application provides a data processing method, device, equipment, storage medium and system to help solve the problem of high industrial production costs in the existing technology.

In the first aspect, embodiments of the present application provide a data processing method, which is applied to a proxy device. The method includes:

Receive a subscription cancellation message; the subscription cancellation message carries identification information of the target sensor;

Determine the target sensor according to the subscription cancellation message;

Send a second working state switching instruction to the target sensor; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is when the target sensor The first measurement period is a working state in which data measurement is performed; the second working state is a working state in which the target sensor stops data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period. cycle.

In a possible implementation of the first aspect, before sending the second working state switching instruction to the target sensor, the method further includes:

Obtain the subscription number of the target sensor and reduce the subscription number of the target sensor by a first preset value;

When the subscription number of the target sensor is equal to or less than the preset threshold, obtain the subscription status of the target sensor, and update the subscription status of the target sensor from the subscribed status to the unsubscribed status;

Sending a second working state switching instruction to the target sensor includes:

When the subscription state of the target sensor is updated from the subscribed state to the unsubscribed state, a second working state switching instruction is sent to the target sensor.

A possible implementation method of the first aspect also includes:

Receive a subscription message; the subscription message carries identification information of the target sensor;

Determine the target sensor according to the subscription message;

Obtain the subscription status of the target sensor;

When the subscription state of the target sensor is an unsubscribed state, the subscription state of the target sensor is updated from an unsubscribed state to a subscribed state, the subscription number of the target sensor is increased by a second preset value, and The target sensor sends a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state.

A possible implementation method of the first aspect also includes:

When the subscription status of the target sensor is subscribed, the subscription number of the target sensor is increased by a second preset value.

A possible implementation method of the first aspect also includes:

Obtain the measurement data of the target sensor;

Obtain the identification information of the target sensor, and determine at least one subscribing device of the target sensor based on the identification information of the target sensor;

The measurement data is sent to at least one subscribing device of the target sensor.

A possible implementation of the first aspect is to send a working state switching instruction to the target sensor, where the working state switching instruction includes a first working state switching instruction or a second working state switching instruction, including:

When there are at least two target sensors, determine the connection method of each target sensor;

According to the connection mode of each target sensor, a working state switching instruction is sent to the target sensor respectively.

In a possible implementation of the first aspect, sending a working state switching instruction to each target sensor according to the connection mode of each target sensor includes:

When the target sensor and the agent device are connected through the field bus, the The target sensor sends a working state switching instruction; or,

When the target sensor and the proxy device are connected through the network, a working state switching instruction is sent to the target sensor through the network connection.

In a possible implementation of the first aspect, obtaining the measurement data of the target sensor includes:

When the target sensor and the agent device are connected through the field bus, the agent device queries the target sensor through the field bus and obtains the measurement data of the target sensor; or,

When the target sensor and the proxy device are connected through the network, the measurement data sent by the target sensor is received through the network connection.

In a possible implementation manner of the first aspect, the network connection includes: an Ethernet network connection or a wireless network connection.

In the second aspect, embodiments of the present application provide a data processing method, applied to sensors, and the method includes:

Receive a second working state switching instruction; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is that the target sensor performs a first measurement cycle The working state of data measurement; the second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period;

According to the second working state switching instruction, the current working state is switched to the second working state, and when the second working state is the working state of performing data measurement with the second measurement cycle, the data is measured according to the second measurement cycle. Measurement.

A possible implementation method of the second aspect also includes:

Receive a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state;

According to the first working state switching instruction, the current working state is switched to the first working state, and when the first working state is a working state in which data measurement is performed with the first measurement cycle, data is measured according to the first measurement cycle. Measurement.

A possible implementation method of the second aspect also includes:

Send measurement data to the agent device.

In the third aspect, embodiments of the present application provide a proxy device, including:

A subscription publishing service module, configured to receive a subscription cancellation message and send the subscription cancellation message to the subscription management module; the subscription cancellation message carries the identification information of the target sensor;

A subscription management module, configured to determine the target sensor according to the subscription cancellation message;

Send a second working state switching instruction to the target sensor; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is when the target sensor The first measurement period is a working state in which data measurement is performed; the second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first Measurement period.

In a possible implementation of the third aspect, the subscription management module is configured to obtain the subscription number of the target sensor and reduce the subscription number of the target sensor by a first preset value;

The subscription management module is configured to send a second working state switching instruction to the target sensor when the subscription state of the target sensor is updated from the subscribed state to the unsubscribed state.

In a possible implementation of the third aspect, the subscription publishing service module is configured to receive a subscription message and send the subscription message to a subscription management module; the subscription message carries identification information of the target sensor;

The subscription management module is used to determine the target sensor according to the subscription message;

Obtain the subscription status of the target sensor;

In a possible implementation of the third aspect, the subscription management module is configured to increase the subscription number of the target sensor by a second preset value when the subscription status of the target sensor is subscribed.

A possible implementation method of the third aspect also includes:

The subscription publishing client module is used to obtain the measurement data of the target sensor and send the measurement data sent by the target sensor to the subscription publishing service module;

The subscription publishing service module is used to obtain the identification information of the target sensor, and determine at least one subscription device of the target sensor based on the identification information of the target sensor;

In a possible implementation of the third aspect, the subscription management module is configured to determine the connection mode of each target sensor when there are at least two target sensors;

According to the connection mode of each target sensor, a working state switching instruction is sent to the target sensor respectively; the working state switching instruction includes: a first working state switching instruction or a second working state switching instruction.

In a possible implementation of the third aspect, the subscription management module is configured to send a working state switching instruction to the target sensor through the field bus when the target sensor and the agent device are connected through a field bus; or ,

In a possible implementation of the third aspect, the subscription publishing client module is configured to query the target sensor through the field bus and obtain the information of the target sensor when the target sensor and the agent device are connected through a field bus. measurement data; or,

In a possible implementation of the third aspect, the network connection includes: an Ethernet network connection or a wireless network connection.

In a fourth aspect, embodiments of the present application provide a sensor, including:

A receiving module, configured to receive a second working state switching instruction; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is when the target sensor The first measurement period is a working state in which data measurement is performed; the second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period;

A processing module configured to switch the current working state to the second working state according to the second working state switching instruction, and when the second working state is the working state of performing data measurement with the second measurement cycle, perform the processing according to the second working state. Data measurement is performed in two measurement cycles.

In a possible implementation of the fourth aspect, the receiving module is used to receive a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state;

The processing module is configured to switch the current working state to the first working state according to the first working state switching instruction, and when the first working state is the working state of performing data measurement with the first measurement cycle, Data measurement is performed according to the first measurement cycle.

A possible implementation method of the fourth aspect also includes:

The sending module is used to send measurement data to the agent device.

In the fifth aspect, embodiments of the present application provide a data processing system, including: an agent device, at least one sensor and at least one subscription device;

Wherein, the agent device is connected to at least one sensor and at least one subscription device;

At least one subscription device, configured to send a subscription cancellation message to the agent device; the subscription cancellation message carries identification information of the target sensor;

The proxy device includes the proxy device described in any one of the above third aspects; the at least one sensor includes the sensor described in any one of the above fourth aspects.

In a sixth aspect, embodiments of the present application provide an electronic device, including a processor and a memory. The memory stores a computer program. When the computer program is executed, the electronic device causes the electronic device to execute any one of the above first aspects. The method described in the above item, or perform the method described in any one of the above second aspects.

In a seventh aspect, embodiments of the present application provide a storage medium. The storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute any one of the steps described in the first aspect. method, or perform the method described in any one of the above second aspects.

The solution provided by the embodiment of this application is used to receive the subscription cancellation message; the subscription cancellation message carries the identification information of the target sensor; determine the target sensor according to the subscription cancellation message; and send a second working state switching instruction to the target sensor. In this way, when the subscribing device pauses to obtain the measurement data of the target sensor, it sends a subscription cancellation message to the first device. After receiving the subscription cancellation message, the first device can determine the target sensor based on the subscription cancellation message and send a message to the target sensor. Send a second working state switching command so that the target sensor Switch from the first working state to the second working state. The data measurement frequency of the target sensor in the second working state is lower than the data measurement frequency of the target sensor in the first working state. That is, when receiving the subscription cancellation message, the target sensor can be controlled to switch to the second working state with a longer measurement period, so that when the target sensor is not needed for monitoring, the monitoring period of the target sensor can be extended, or the data measurement can be stopped, reducing the The power consumption of the target sensor when data monitoring is not required extends the battery life of the target sensor and reduces industrial production costs.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic diagram of a scene where a sensor is connected to a substation according to an embodiment of the present application;

Figure 2 is a schematic flow chart of a data processing method provided by an embodiment of the present application;

Figure 3 is a schematic flow chart of another data processing method provided by an embodiment of the present application;

Figure 4 is a schematic flow chart of another data processing method provided by an embodiment of the present application;

Figure 5a is a schematic scenario diagram of a data processing method provided by an embodiment of the present application;

Figure 5b is a schematic diagram of a scenario of another data processing method provided by an embodiment of the present application;

Figure 6 is a schematic flow chart of another data processing method provided by an embodiment of the present application;

Figure 7 is a schematic diagram of a scenario of another data processing method provided by an embodiment of the present application;

Figure 8 is a schematic flow chart of another data processing method provided by an embodiment of the present application;

Figure 9 is a schematic structural diagram of a proxy device provided by an embodiment of the present application;

Figure 10 is a schematic structural diagram of another proxy device provided by an embodiment of the present application;

Figure 11 is a schematic structural diagram of a sensor provided by an embodiment of the present application;

Figure 12 is a schematic structural diagram of another sensor provided by an embodiment of the present application;

Figure 13 is a schematic structural diagram of a data processing system provided by an embodiment of the present application;

Figure 14 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

In order to better understand the technical solution of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be clear that the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of this application.

The terminology used in the embodiments of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. As used in the embodiments and the appended claims, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" used in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and A exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related object is a An "or" relationship.

Before giving a detailed introduction to the embodiments of the present application, terminology that is or may be applied in the embodiments of the present application is first explained.

A sensor (English name: transducer/sensor) is a detection device that can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the needs of the information Requirements for transmission, processing, storage, display, recording and control.

At present, existing safety monitoring systems usually include various sensors, substations and data service equipment, as shown in Figure 1. Among them, various sensors are set at locations where parameter monitoring is required to monitor corresponding environmental parameters and production parameters. For example, a temperature sensor is used to monitor the temperature in the production environment, a methane sensor is used to monitor the concentration of methane in the production environment, and a wind speed sensor is used to monitor the wind speed in the production environment. After different sensors detect data, they can transmit the monitored data to the substation, and then send the monitored data to the data service equipment through the substation for subsequent processing. In some technologies, the sensor uses a battery to power it, and the sensor remains active as long as it is turned on. When the sensor's measurement data is not subscribed, the sensor is still in normal working condition, consuming more power, reducing the battery's working time, and increasing industrial production costs.

Moreover, the data transmission methods between different sensors and substations are not exactly the same. As shown in Figure 1, some sensors and substations are connected through fieldbus to realize data transmission. For example, the temperature sensor and substation are connected through fieldbus. . Some sensors and sub-stations realize data transmission through Ethernet or wireless network connections. For example, in the figure, the methane sensor and the sub-station are connected through the Ethernet network, and the wind speed sensor and the sub-station are connected through the wireless network. In some technologies, a sub-station corresponding to the connection mode is set for each connection mode sensor, so that the sensor can transmit data to the sub-station through the connection mode it supports. As a result, a larger number of substations need to be set up, further increasing the cost of industrial production.

In response to the above problems, embodiments of the present application provide a data processing method, device, equipment, storage medium and system to receive a subscription cancellation message; the subscription cancellation message carries the identification information of the target sensor; according to the subscription cancellation message, the target sensor is determined ;Send the second working state switching instruction to the target sensor. In this way, when the subscribing device pauses to obtain the measurement data of the target sensor, it sends a subscription cancellation message to the first device. After receiving the subscription cancellation message, the first device can determine the target sensor based on the subscription cancellation message and send a message to the target sensor. Send a second working state switching instruction so that the target sensor switches from the first working state to the second working state. The data measurement frequency of the target sensor in the second working state is lower than the data measurement frequency of the target sensor in the first working state. That is, when receiving the subscription cancellation message, the target sensor can be controlled to switch to the second working state with a longer measurement period, so that when the target sensor is not needed for monitoring, the monitoring period of the target sensor can be extended, or the data measurement can be stopped, reducing the The power consumption of the target sensor when data monitoring is not required extends the battery life of the target sensor and reduces industrial production costs. The details are explained below.

Refer to Figure 2, which is a schematic flow chart of a data processing method provided by an embodiment of the present application. This method is applied to the proxy device, as shown in Figure 2. The method includes:

Step S201: Receive a subscription cancellation message.

The subscription cancellation message carries the identification information of the target sensor.

In the embodiment of the present application, in order to improve the safety of industrial production during the industrial production process, it is necessary to periodically measure parameters of the surrounding environment or the operating status of important equipment in the production process through sensors. Due to the simple structure of the sensor, its function is single, its computing power is poor, and it generally does not have storage function. Therefore, it is necessary to Transmit the measurement data of periodic measurements to other devices for processing. In this embodiment of the present application, the proxy device establishes connections with different sensors, so that the sensors can transmit their periodically measured measurement data to the proxy device. Other data service devices can subscribe to the proxy device for the measurement data of the sensors they require. At this time, the other data service devices can be called subscribing devices. When the proxy device obtains the measurement data of different sensors periodically measured, it can send the corresponding sensor periodic measurement measurement data to each subscribing device based on the measurement data of the required sensors subscribed by each subscribing device. If due to production needs, it is necessary to stop the operation of certain devices or no longer pay attention to certain parameters in the environment, etc., the relevant subscription device can stop obtaining the measurement data measured by the relevant sensors. At this time, the subscription device can send a subscription cancellation message to the agent device. . The subscription cancellation message carries the identification information of the target sensor. The target sensor is a sensor for which the subscribing device no longer obtains measurement data. The proxy device can receive subscription cancellation messages sent by the subscribing device.

Among them, the identification information of the target sensor is information used to identify the target sensor. For example, it can be the identification number (Identity document, ID) of the target sensor, or the name of the target sensor, or it can also have a mapping relationship with the sensor. Other information, for example, when there is a mapping relationship between the subscription topic information and the sensor, the identification information of the target sensor can also be the subscription topic information, etc. Among them, the mapping relationship between other information and the sensor can be set in advance. This application does not limit the identification information of the target sensor.

For example, in the coal mine production process, temperature sensors, methane sensors and wind speed sensors are installed. Subscribing device 1 needs to obtain the ambient temperature during the coal mine production process in order to monitor whether the temperature is too high or too low during the coal mine production process. Subscription device 2 needs to obtain the methane concentration during the coal mine production process in order to monitor whether the methane content in the air exceeds the standard during the coal mine production process. Subscribing device 3 needs to obtain the wind speed during the coal mine production process in order to monitor whether the wind speed is too high or too low during the coal mine production process. Based on this, the subscribing device 1 can subscribe to the proxy device for the measurement data of the temperature sensor. The subscribing device 2 may subscribe to the proxy device for measurement data of the methane sensor. The subscribing device 3 may subscribe to the proxy device for measurement data of the wind speed sensor. In this way, after the temperature sensor periodically measures the temperature of the environment in the coal mine production process, it can transmit its measured measurement data to the agent device, and the agent device can send the measurement data transmitted by the temperature sensor to the subscribing device 1. Similarly, after the methane sensor periodically measures the methane concentration in the air during the coal mine production process, it can transmit its measurement data to the agent device, and the agent device can send the measurement data transmitted by the temperature sensor to the subscribing device 2. After the wind speed sensor periodically measures the wind speed of the environment in the coal mine production process, it can transmit its measured measurement data to the agent device, and the agent device can send the measurement data transmitted by the temperature sensor to the subscribing device 3. If due to the improvement of the production environment or other reasons, it is assumed that the subscription device 3 no longer needs to monitor the wind speed in the environment. At this time, the subscription device 3 may send a subscription cancellation message to the agent device, and the subscription cancellation message carries the identification information of the wind speed sensor. The proxy device receives the subscription cancellation message sent by the subscribing device 3.

Step S202: Determine the target sensor according to the subscription cancellation message.

In this embodiment of the present application, after obtaining the subscription cancellation message, the proxy device can parse the subscription cancellation message to obtain the identification information of the target sensor carried in the subscription cancellation message, thereby determining the target sensor corresponding to the subscription device based on the identification information of the target sensor.

Step S203: Send a second working state switching instruction to the target sensor.

The second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state. The first working state is a working state in which the target sensor performs data measurement in a first measurement period. The second working state is a working state in which the target sensor stops data measurement or performs data measurement in a second measurement period. Wherein, the second measurement period is greater than the first measurement period.

In the embodiment of this application, after the proxy device receives the subscription cancellation message sent by the subscribing device and determines the target sensor, since the subscribing device cancels the subscription to the target sensor, it means that the measurement data measured by the target sensor does not need to be transmitted to other devices. , at this time, the period of measurement data of the target sensor can be extended or the target sensor can be controlled to stop measuring data. The target sensor is preset with a first working state and a second working state. The first working state is a working state in which data measurement is performed in a first measurement cycle. When the target sensor performs normal data measurement, it usually works in the first working state. The second working state is a working state in which the target sensor stops data measurement or performs data measurement in a second measurement period. When the subscribing device stops subscribing to the measurement data measured by the target sensor, the target sensor can switch to the second working state to stop data measurement or extend the period of data measurement to reduce battery consumption and extend the working time of the battery in the target sensor. Based on this, the proxy device can send a second working state switching instruction to the target sensor, so that the target sensor can switch from the first working state to the second working state after receiving the second working state switching instruction.

It should be noted that in the embodiment of the present application, the first working state and the second working state may be preset in the sensor. Moreover, when setting the second working state, the setting can be made according to whether the sensor needs to work for a long time. If the sensor needs to work for a long time, the second working state of this type of sensor can be set to the working state of performing data measurement in the second measurement cycle. That is, even if this type of sensor does not subscribe to a device for data subscription, it must monitor parameters for a long time to ensure the safety of industrial production. For example, the methane concentration sensor needs to obtain the methane concentration when there is no subscription equipment. In order to improve the life safety of workers in industrial production, it is also necessary to monitor the methane concentration in the production environment. The methane sensor is a type that requires long-term operation. At this time, the second working state of the methane sensor can be set to the working state of performing data measurement in the second measurement period.

If the sensor does not need to work for a long time, the second working state of this type of sensor can be set to a working state that stops data measurement. That is, this type of sensor does not need to perform parameter monitoring when there is no subscribing device for data subscription. For example, the target sensor is a sensor that detects the operating status of the equipment. In some embodiments, when the device stops running, the relevant subscribing device stops obtaining data on the running status of the device. Since the device has stopped running, the target sensor does not need to continue to monitor relevant parameters of its working status. Therefore, its second working state can be set to a working state that stops data measurement.

It should be understood that whether the target sensor is of a type that requires long-term operation can be set by relevant personnel according to actual needs, and based on whether it is of a type that requires long-term operation, its second working state can be set.

It should be noted that the first measurement period and the second measurement period can be set by those skilled in the art based on actual experience, or obtained based on the results of big data analysis, which are not limited in the embodiments of the present application.

In some embodiments, the proxy device may support multiple connection methods to connect to the sensor. For sensors that need to be connected via fieldbus, the agent device can connect to such sensors via fieldbus. For sensors that require a network connection, the agent device can connect to such sensors through a network connection. The network connection includes an Ethernet connection or a wireless network connection. The proxy device sending the second working state switching instruction to the target sensor includes: determining the connection mode of the target sensor; and sending the second working state switching instruction to the target sensor according to the connection mode of the target sensor.

In other words, the connection between the target sensor and the agent device may be a fieldbus or a network connection. Before sending the second working state switching instruction to the target sensor, the agent device determines the connection mode of the target sensor, and sends the second working state switching instruction to the target sensor according to the connection mode of the target sensor. For example, when the target sensor and the agent device are connected through a network, assuming an Ethernet connection, the second working state switching instruction can be sent to the target sensor through the Ethernet connection. When the target sensor and the agent device are connected through a field bus, the agent device can send the second working state switching instruction of the target sensor through the field bus. At this time, all devices connected to the field bus can receive the second working state switching command. After receiving the second working state switching command, other devices except the target sensor detect that the command is not sent to themselves and do not respond to the command. command to respond. After receiving the second working state switching instruction, the target sensor can perform corresponding working state switching.

In some embodiments, the proxy device may receive at least two subscription cancellation messages, and the identification information of the target sensor carried in the at least two subscription cancellation messages may be the same or different. At this time, the proxy device can determine at least two target sensors based on the received subscription cancellation message, and the proxy device needs to send a second working state switching instruction to at least two target sensors. Based on this, the agent device sending the second working state switching instruction to the target sensor includes: when there are at least two target sensors, determining the connection mode of each target sensor; according to the connection mode of each target sensor, sending the third working state switching instruction to the target sensor respectively. 2. Working state switching instructions.

That is, when the proxy device determines that there are at least two target sensors, the proxy device can determine the connection mode with each target sensor, and send the second working status to each target sensor according to the connection mode with each target sensor. Switch command.

In this way, when the subscribing device pauses to obtain the measurement data of the target sensor, it sends a subscription cancellation message to the agent device. After receiving the subscription cancellation message, the agent device can determine the target sensor based on the subscription cancellation message and send the third message to the target sensor. The second working state switching instruction is to switch the target sensor from the first working state to the second working state. The data measurement frequency of the target sensor in the second working state is lower than the data measurement frequency of the target sensor in the first working state. That is, when receiving the subscription cancellation message, the target sensor can be controlled to switch to the second working state with a longer measurement period, so that when the target sensor is not needed for monitoring, the monitoring period of the target sensor can be extended, or the data measurement can be stopped, reducing the The power consumption of the target sensor when data monitoring is not required extends the battery life of the target sensor and reduces industrial production costs.

Refer to Figure 3, which is a schematic flow chart of a data processing method provided by an embodiment of the present application. This method is applied to the sensor, as shown in Figure 3. The method includes:

Step S301: Receive a second working state switching instruction.

The second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state. The first working state is a working state in which the target sensor performs data measurement in the first measurement period. The second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement cycle. Wherein, the second measurement period is greater than the first measurement period.

In this embodiment of the present application, the target sensor can transmit measurement data through a connection with the proxy device. And can receive the instructions sent by the agent device to the target sensor through its connection with the agent device. When the proxy device sends a second working state switching instruction to the target sensor through the connection with the target sensor, the target sensor may receive the second working state switching instruction sent by the proxy device.

Step S302: Switch the current working state to the second working state according to the second working state switching instruction. state, and when the second working state is the working state of performing data measurement with the second measurement cycle, perform data measurement according to the second measurement cycle.

In the embodiment of the present application, after receiving the second working state switching instruction, the target sensor can switch the current working state from the first working state to the second working state when its current working state is the first working state. That is, after receiving the second working state, the target sensor learns that the measurement cycle needs to be extended. At this time, if the target sensor performs data measurement in the first measurement cycle, it can switch the current working state to the second working state when receiving the second working state switching instruction. For example, when the second working state is the working state of stopping data measurement, the target sensor stops data measurement when receiving the second working state switching instruction. When the second working state is to perform data measurement with the second measurement cycle, when the target sensor receives the second working state switching instruction, it switches the measurement cycle from the first measurement cycle to the second measurement cycle, and uses the second measurement cycle to perform data measurement. Data measurements are performed period by period. Since the second measurement period is greater than the first measurement period, when the target sensor switches the current working state to the second working state, the measurement period of data measurement is extended and the frequency of data measurement is reduced, thereby reducing the consumption of the target sensor. power and increase production costs.

It should be noted that when the target sensor performs data measurement in the second measurement period, the measurement data measured by the target sensor is not obtained by the subscribing device. Therefore, the measurement data measured by the target sensor may no longer be transmitted to the proxy device, or it may be transmitted to the proxy device in the second measurement period. The measurement data measured during the second measurement cycle continue to be transmitted to the agent device. At this time, after the proxy device receives the measurement data transmitted by the target sensor, since there is no subscribing device that needs to obtain the measurement data measured by the target sensor, the proxy device can store the received measurement data in the storage device or delete the received measurement data. The proxy device no longer sends measurement data transmitted by this target sensor to the subscribing device.

Refer to Figure 4, which is a schematic flow chart of another data processing method provided by an embodiment of the present application. This embodiment describes a scenario in which a subscribing device subscribes to a sensor from a proxy device. As shown in Figure 4, the method includes:

Step S401: The subscribing device sends a subscription message to the proxy device. The proxy device receives subscription messages.

The subscription message carries identification information of the target sensor.

In the embodiment of this application, when the subscribing device needs to obtain the measurement data measured by the sensor, it can inform the agent device of the measurement data of the sensor it needs to obtain. At this time, the subscribing device sends a subscription message to the agent device, and the subscription message contains The identification information of the target sensor, where the measurement data measured by the target sensor is the measurement data that the subscribing device needs to obtain.

For example, subscribing device 1 needs to obtain the measurement data measured by sensor 1 and sensor 2, and subscribing device 2 needs to obtain the measurement data measured by sensor 3. Then subscribing device 1 sends a subscription message to the proxy device, and the subscription message sent by subscribing device 1 carries There is identification information of sensor 1 and identification information of sensor 2. The subscribing device 2 sends a subscription message to the proxy device, and the subscription message sent by the subscribing device carries the identification information of the sensor 3 . The proxy device can receive the subscription message sent by the subscribing device 1 and the subscription message sent by the subscribing device 2.

Step S402: The agent device determines the target sensor according to the subscription message.

In this embodiment of the present application, after receiving the subscription message, the proxy device can parse the subscription message to obtain the identification information of the target sensor carried in the subscription message, and determine the target sensor corresponding to the subscription device based on the obtained identification information of the target sensor.

As a possible implementation, the proxy device can record the correspondence between the subscribing device and the target sensor. In this way, the agent device can learn which targets the subscribing device needs to obtain based on the recorded correspondence. Sensor measurement data. When the measurement data transmitted by the target sensor is obtained, the subscribing device corresponding to the target sensor can be determined by recording the information, and the measurement data can be sent to the subscribing device. For example, the proxy device may be configured with a subscription list for each sensor. The identification information of the subscribing device that subscribes to the sensor is recorded in the subscription list. In this way, after receiving the subscription message sent by the subscribing device and parsing the identification information of the target sensor, the subscription list of the target sensor can be found based on the identification information of the target sensor, and the identification information of the subscribing device is added to the target in the sensor's subscription list. Of course, the proxy device can also record the correspondence between the sensor and the subscribing device in other ways, and this application does not limit this.

As in the above example, after receiving the subscription message sent by the subscribing device 1, the proxy device can parse the subscription message sent by the subscribing device 1 and obtain the identification information of sensor 1 and the identification information of sensor 2 carried in it. The proxy device can determine sensor 1 and sensor 2 as the target sensors corresponding to the subscribing device 1 based on the identification information of sensor 1 and the identification information of sensor 2. The proxy device can determine sensor 3 as the target sensor corresponding to subscribing device 2 based on the identification information of sensor 3.

Step S403: The proxy device obtains the subscription status of the target sensor.

In this embodiment of the present application, after receiving the subscription message sent by the subscribing device, the proxy device can determine the target sensor through the identification information of the target sensor carried in the subscription message, thereby knowing that the subscribing device needs to subscribe to the measurement data measured by the target sensor. , that is, to know that the subscribing device needs to obtain the measurement data measured by the target sensor. Since the data of a sensor can be subscribed and obtained by multiple subscribing devices; when the sensor is not subscribed by any subscribing device, the proxy device records the sensor's subscription status as unsubscribed, and needs to control the sensor to work in the second job status, so that the sensor stops measuring data or reduces the frequency of measuring data. When a sensor is subscribed by at least one subscribing device, the proxy device records the subscription status of the sensor as a subscribed status, and the proxy device controls the sensor to work in the first working state so that the sensor can perform data measurement normally. Therefore, when the agent device receives the subscription message and determines the target sensor, it needs to detect the current subscription status of the target sensor, so as to control the target sensor to switch working status when the current subscription status is unsubscribed. Based on this, when the proxy device determines a target sensor, it can check the recorded current subscription status of the target sensor to learn whether the target sensor is in an unsubscribed state.

It should be noted that the subscription status is the status information of the proxy device that records whether the sensor is subscribed by the subscribing device. It is recorded by the proxy device to obtain measurement data based on whether each sensor is subscribed by the subscribing device. For example, when a sensor is not subscribed by any subscribing device to obtain measurement data, the subscription status of the sensor is recorded as unsubscribed. When a sensor is subscribed by at least one subscribing device to obtain measurement data, the subscription status of the sensor is recorded as a subscribed status.

As a possible implementation, the agent device may determine one or more target sensors based on the subscription message. For example, the subscription message received by the proxy device may carry identification information of at least one target sensor. The agent device can determine at least one target sensor based on the subscription message. Alternatively, the proxy device receives a subscription message sent by at least one subscribing device. The agent device may determine at least one target sensor based on at least one subscription message received. The agent device needs to obtain the subscription status of each target sensor in at least one target sensor.

For example, subscribing device 1 needs to obtain the measurement data measured by sensor 1, and subscribing device 2 needs to obtain the measurement data measured by sensor 2. As shown in Figure 5a and Figure 5b, subscription device 1 and subscription device 2 send subscription messages to the proxy device. Among them, the subscription message sent by the subscribing device 1 to the agent device carries the identification of the sensor 1 information. The subscription message sent by the subscribing device 2 to the agent device carries the identification information of the sensor 2 . After receiving the subscription message sent by the subscribing device 1, the agent device can learn the identification information of the sensor 1 by parsing the subscription message, and then determine that the subscribing device 1 needs to obtain the measurement data measured by the sensor 1. The agent device can determine that the target sensor is Sensor 1 based on the identification information of Sensor 1 . The agent device can obtain the recorded subscription status of sensor 1. Similarly, after receiving the subscription message sent by the subscribing device 2, the proxy device can learn the identification information of the sensor 2 by parsing the subscription message, and then determine that the subscribing device 2 needs to obtain the measurement data measured by the sensor 2. The proxy device determines that the target sensor is sensor 2 based on the identification information of sensor 2, and can obtain the recorded subscription status of sensor 2.

It should be understood that since the subscription state includes two states: subscribed state and unsubscribed state, the following steps performed by the proxy device are different depending on the obtained subscription state of the target sensor. When the proxy device determines that the subscription status of the target sensor is the unsubscribed status, it executes the following steps S404a-S405a and steps S406-S408. When the proxy device determines that the subscription status of the target sensor is the subscribed status, the following steps S404b and S406-S408 are executed.

Step S404a: When detecting that the subscription status of the target sensor is the unsubscribed status, the proxy device updates the subscription status of the target sensor from the unsubscribed status to the subscribed status, increases the subscription number of the target sensor by the second preset value, and adds The target sensor sends a first working state switching instruction. The target sensor receives the first working state switching instruction.

The first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state.

In the embodiment of this application, when the proxy device obtains the subscription status of the target sensor, it can detect the subscription status of the target sensor. When it detects that the subscription status of the target sensor is unsubscribed, it means that the target sensor has not been subscribed by other subscribing devices. Measurement data, its working state is the second working state. Since the subscribing device needs to obtain the measurement data measured by the target sensor, the proxy device can update the subscription status of the target sensor from the unsubscribed status to the subscribed status, and increase the subscription number of the target sensor by the second preset value, so that It is recorded that several subscribing devices subscribe to obtain the measurement data measured by the target sensor. The agent device can send a first working state switching instruction to the target sensor, so that the working state of the target sensor switches from the second working state to the first working state, so that the target sensor is in a normal data measurement cycle and performs corresponding data measurement. At this time, the target sensor can receive the first working state switching instruction sent by the proxy device.

It should be noted that the second preset value is a preset change amount each time the subscription quantity is changed. The second preset value can be set by those skilled in the art based on actual experience, or obtained based on the results of big data analysis, which is not limited in the embodiments of the present application. As a possible implementation, the second preset value is 1.

As a possible implementation manner, when the agent device sends the first working state switching instruction to the target sensor, it sends the working state switching instruction to the target sensor according to the connection mode between the agent device and the target sensor.

That is, the connection method between the agent device and the target sensor can be a fieldbus connection, a network connection, or other ways of connection. When the agent device sends the first working state switching instruction to the target sensor, the agent device may send the first working state switching instruction according to the connection mode with the target sensor. For example, when the agent device and the target sensor are connected through a field bus, the agent device sends the first working state switching instruction of the target sensor to the field bus, and the target sensor can receive the first working state switching instruction through the field bus. When the proxy device is connected to the target sensor through a network, such as an Ethernet connection or a wireless network connection , the agent device can send the first working state switching instruction to the target sensor through the Ethernet network connection or the wireless network connection.

It should be noted that when the agent device and the target sensor are connected through the field bus, when the agent device sends the first working state switching instruction of the target sensor through the field bus, other devices connected on the field bus can also receive the instruction, because the first The working state switching instruction is sent to the target sensor, so when other devices receive the first working state switching instruction, they do not perform corresponding processing.

As a possible implementation manner, after determining at least one target sensor, the proxy device needs to obtain the subscription status of at least one target sensor, and then when the subscription status of at least one target sensor is unsubscribed, send the first message to the at least one target sensor. Working status switching instructions.

As a possible implementation manner, when the target sensor contains at least two, the agent device sends the first working state switching instruction to the target sensor including: when there are at least two target sensors, determining the connection mode of each target sensor; according to The connection mode of each target sensor sends a first working state switching instruction to the target sensor respectively.

That is to say, when there are at least two target sensors, the connection method between each target sensor and the proxy device may be different. At this time, the proxy device can send a first working state switching instruction to each target sensor according to the connection mode of each target sensor.

As shown in the above example, refer to Figure 5a, after the proxy device obtains the subscription status of sensor 1, assuming that the proxy device detects that the subscription status of sensor 1 is unsubscribed, and the sensor 1 and the proxy device are connected through a field bus, then The agent device can send the first working state switching instruction to the sensor 1 through the field bus. Sensor 1 receives the first working state switching instruction through the field bus. Similarly, after the proxy device obtains the subscription status of sensor 2, assuming that the proxy device detects that the subscription status of sensor 2 is unsubscribed, and the sensor 2 and the proxy device are connected through the Ethernet network, the proxy device can connect to the sensor through the Ethernet network. Sensor 2 sends a first working state switching instruction. Sensor 2 receives the first working state switching instruction through the Ethernet network.

Step S404b: When the subscription status of the target sensor is subscribed, the proxy device increases the subscription number of the target sensor by the second preset value.

In the embodiment of this application, when the proxy device obtains the subscription status of the target sensor, it can detect the subscription status of the target sensor. When it detects that the subscription status of the target sensor is the subscribed status, it means that the target sensor has been subscribed by other subscribing devices. Obtain measurement data, and its working state is the first working state. At this time, the proxy device no longer needs to send the first working state switching instruction to the target sensor, and only needs to increase the subscription number of the target sensor by the second preset value.

As shown in the above example, refer to Figure 5b, after the proxy device obtains the subscription status of sensor 1, assuming that the proxy device detects that the subscription status of sensor 1 is unsubscribed, and the sensor 1 and the proxy device are connected through a field bus, then The agent device can send the first working state switching instruction to the sensor 1 through the field bus. Sensor 1 receives the first working state switching instruction through the fieldbus. After the proxy device obtains the subscription status of sensor 2, assuming that the proxy device detects that the subscription status of sensor 2 is the subscribed status, and the sensor 2 and the proxy device are connected through the Ethernet network, the proxy device does not need to send the first working status to sensor 2. Switching instruction, assuming that the second preset value is 1, the agent device increases the subscription number of sensor 2 by 1.

Step S405a: The target sensor switches the current working state to the first working state according to the first working state switching instruction, and when the first working state is the working state of performing data measurement with the first measurement period, according to Data measurement is performed in the first measurement cycle.

In the embodiment of the present application, after the target sensor receives the first working state switching instruction, when it works in the second working state, that is, when the target sensor stops data measurement or performs data measurement in the second measurement cycle, the target sensor After receiving the first working state switching instruction, it is learned that the working state needs to be switched from the second working state to the first working state. At this time, the target sensor can switch its working state to the first working state. That is, the target sensor adjusts its working state to a working state in which the data is measured with the first measurement cycle as a cycle, and the data is measured according to the first measurement cycle.

For example, after receiving the first working state switching instruction sent by the agent device, the sensor 1 switches its own working state from the second working state to the first working state. Assuming that the second working state of sensor 1 is to stop data measurement, after receiving the first working state switching instruction, sensor 1 switches from stopping data measurement to the working state of performing data measurement with the first measurement cycle as the cycle. According to the second A measurement cycle performs data measurement periodically.

Step S406: The agent device obtains the measurement data of the target sensor.

In the embodiment of the present application, after the target sensor periodically performs data measurement in the first measurement period, it can transmit its measured measurement data to the proxy device, so that the proxy device transmits the measurement data to the corresponding subscribing device. For example. The target sensor can send measured measurement data directly to the proxy device, and the proxy device can obtain the measurement data of the target sensor from the target sensor.

As a possible implementation manner, when the target sensor sends measurement data to the proxy device, the target sensor can add the identification information of the target sensor to the measurement data and send it to the proxy device.

As a possible implementation, the proxy device obtains measurement data in different ways depending on its connection method to the target sensor. The specific agent device obtains the measurement data sent by the target sensor including:

When the target sensor and the proxy device are connected through the fieldbus, the proxy device queries the target sensor through the fieldbus to obtain the measurement data sent by the target sensor. Alternatively, when the target sensor and the proxy device are connected through a network, the proxy device receives the measurement data sent by the target sensor through the network connection.

That is, the target sensor and the proxy device are connected through a fieldbus or a network. Therefore, when the target sensor sends measurement data to the proxy device, if the target sensor and the proxy device are connected through a fieldbus, the proxy device queries the target through the fieldbus. Sensor measurement data, obtain the measurement data of the target sensor. At this time, the agent device can determine the identification information of the target sensor while querying the measurement data of the target sensor.

When the target sensor and the proxy device are connected through a network, the target sensor sends measurement data to the proxy device through the network connection, and the proxy device receives the measurement data sent by the target sensor through the network connection.

As mentioned in the above example, the agent device needs to query the measurement data of sensor 1 through the fieldbus. At this point sensor 1 can transmit its measured measurement data to the agent device through the fieldbus. Sensor 2 can transmit the measurement data it acquires to the agent device via an Ethernet connection. The agent device can receive the measurement data sent by sensor 1 through the fieldbus with sensor 1, and can receive the measurement data sent by sensor 2 through the Ethernet connection with sensor 2.

Step S407: The proxy device obtains the identification information of the target sensor, and determines at least one subscribing device of the target sensor based on the identification information of the target sensor.

In this embodiment of the present application, when receiving the subscription message sent by the subscribing device, the proxy device may determine When subscribing to the target sensor corresponding to the device, the corresponding relationship between the subscribing device and the target sensor can be recorded. After obtaining the measurement data of the target sensor, the proxy device can determine the identification information of the target sensor based on the received measurement data, so that it can find the corresponding relationship between the recorded subscription device and the target sensor based on the identification information of the target sensor, and determine the At least one subscribing device corresponding to this target sensor.

As a possible implementation method, the measurement data carries the identification information of the target sensor. At this time, after the proxy device receives the measurement data, it can parse the measurement data and obtain the identification information of the target sensor.

Of course, the proxy device can also obtain the identification information of the target sensor through its own method. For example, when a proxy device establishes a connection with a sensor, it can also record the identification information of the sensor corresponding to the connection. At this time, when the proxy device receives measurement data through a connection with the target sensor, it can record the identification information of the sensor corresponding to the connection and determine the identification information of the target sensor. Of course, the identification information of the target sensor can also be obtained in other ways, and this application does not limit this.

Step S408: The proxy device sends measurement data to at least one subscribing device of the target sensor. At least one subscribing device receives measurement data.

In this embodiment of the present application, when the proxy device determines at least one subscribing device of the target sensor, it can send the measurement data of the target sensor to the at least one subscribing device, so that the at least one subscribing device obtains the measurement data of the target sensor and performs corresponding processing. processing.

In this way, in this embodiment of the present application, the subscribing device can send a subscription message to the proxy device, and the proxy device can determine the target sensor based on the subscription message, and control the target sensor to perform data measurement in the first working state. In addition, the agent device can support multiple connection methods at the same time to connect to sensors with different connection methods, so that measurement data of sensors with multiple connection methods can be obtained, reducing the number of sub-stations used and greatly reducing industrial costs.

Refer to Figure 6, which is a schematic flow chart of another data processing method provided by an embodiment of the present application. Compared with the above-mentioned embodiment described in FIG. 4 , this embodiment adds the relevant steps of unsubscribing from the sensor. As shown in Figure 6, the method includes:

Step S601: The subscribing device sends a subscription message to the proxy device. The proxy device receives subscription messages.

For details, please refer to step S401, which will not be described again here.

Step S602: The agent device determines the target sensor according to the subscription message.

For details, please refer to step S402, which will not be described again here.

Step S603: The proxy device obtains the subscription status of the target sensor.

For details, please refer to step S403, which will not be described again here.

It should be understood that since the subscription state includes two states: subscribed state and unsubscribed state, the following steps performed by the proxy device are different depending on the obtained subscription state of the target sensor. When the proxy device determines that the subscription status of the target sensor is the unsubscribed status, it executes the following steps S604a-S605a and steps S606-S608. When the proxy device determines that the subscription state of the target sensor is the subscription state, the following steps S604b and S606-S608 are executed.

Step S604a: When the subscription status of the target sensor is an unsubscribed status, update the subscription status of the target sensor from the unsubscribed status to the subscribed status, increase the subscription number of the target sensor by a second preset value, and send the third preset value to the target sensor. A working state switching command. The target sensor receives the first working state switching instruction.

Wherein, the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state. operating status.

For details, please refer to step S404a, which will not be described again here.

Step S604b: When the subscription status of the target sensor is subscribed, increase the subscription number of the target sensor by a second preset value.

For details, please refer to step S404b, which will not be described again here.

Step S605a: The target sensor switches the current working state to the first working state according to the first working state switching instruction, and when the first working state is the working state of performing data measurement with the first measurement cycle, performs the measurement according to the first measurement cycle. Data measurement.

For details, please refer to step S405a, which will not be described again here.

Step S606: The agent device obtains the measurement data of the target sensor.

For details, please refer to step S406, which will not be described again here.

Step S607: The proxy device obtains the identification information of the target sensor, and determines at least one subscribing device of the target sensor based on the identification information of the target sensor.

For details, please refer to step S407, which will not be described again here.

Step S608: The proxy device sends measurement data to at least one subscribing device of the target sensor. At least one subscribing device receives measurement data.

For details, please refer to step S408, which will not be described again here.

Step S609: The subscribing device sends a subscription cancellation message to the proxy device. The proxy device receives the subscription cancellation message.

For details, please refer to step S201, which will not be described again here.

Step S610: The agent device determines the target sensor according to the subscription cancellation message.

For details, please refer to step S202, which will not be described again here.

As a possible implementation method, when the proxy device determines the target sensor, since the subscribing device no longer needs to obtain the measurement data of the target sensor, the proxy device can delete the recorded correspondence between the subscribing device and the target sensor, thereby Measurement data from the target sensor is no longer sent for subscribing devices. For example, delete the identification information of the subscribing device recorded in the subscription list of the target sensor.

Step S611: The proxy device obtains the subscription number of the target sensor and reduces the subscription number of the target sensor by a first preset value.

In this embodiment of the present application, after receiving the subscription cancellation message, the proxy device can parse the subscription message to obtain the identification information of the target sensor carried in the subscription message, and then determine the target sensor whose measurement data needs to be canceled by the subscribing device. Since the target sensor may be subscribed by multiple subscribing devices at the same time, that is, multiple subscribing devices need to obtain the measurement data of the target sensor at the same time. When one of the subscribing devices unsubscribes from the measurement data of the target sensor, there are other subscribing devices that need to subscribe. The target sensor measures data, so the target sensor still works in the first working state. When the target sensor is subscribed to only one subscribing device and the subscribing device unsubscribes the measurement data of the target sensor, that is, when no subscribing device subscribes to the measurement data of the target sensor, the working state of the target sensor needs to be switched to the second state. working status to reduce the power consumption of the target sensor. Therefore, it is necessary to record the number of subscriptions of the target sensor. Every time a subscription device is added to subscribe to the test data of the target sensor, the subscription number is increased by the second preset value. Every time a subscription device is reduced to subscribe to the test data of the target sensor, When testing data, the number of subscriptions is reduced by the first preset value. Based on this, after receiving the subscription cancellation message sent by the subscribing device and determining the target sensor, the proxy device may obtain the subscription number of the target sensor and reduce the subscription number of the target sensor by the first preset value.

As a possible implementation manner, the first preset value and the second preset value are equal.

As a possible implementation, the first preset value is 1.

Step S612: When the number of subscriptions to the target sensor is equal to or less than the preset threshold, the proxy device obtains the subscription status of the target sensor and updates the subscription status of the target sensor from the subscribed status to the unsubscribed status.

In this embodiment of the present application, after the proxy device reduces the subscription number of the target sensor by the first threshold, that is, after updating the subscription number of the target sensor, the proxy device can compare the updated subscription number of the target sensor with the preset threshold. When the number of subscriptions to the target sensor is less than or equal to the preset threshold, it means that no subscribing device subscribes to the measurement data of the target sensor. At this time, the proxy device can obtain the recorded subscription status of the target sensor and change the subscription status of the target sensor from the subscribed status. Updated to unsubscribed status.

It should be noted that when the number of subscription data of the target sensor is greater than the preset threshold, it means that there are other subscription devices that need to obtain the measurement data of the target sensor. At this time, step S607 can be re-executed until the subscription data of the target sensor is less than or equal to the preset threshold.

It should be understood that the preset threshold is a threshold set in advance for determining whether no subscribing device subscribes to the measurement data of the target sensor. When the number of subscriptions to the target sensor is greater than the preset threshold, it is considered that there is a subscribing device that subscribes to the measurement data of the target sensor. When the number of subscriptions to the target sensor is less than or equal to the preset threshold, it is considered that no subscribing device has subscribed to the measurement data of the target sensor. As a possible implementation method, the preset threshold value is 0.

Step S613: When the subscription status of the target sensor is updated from the subscribed status to the unsubscribed status, the proxy device sends a second working status switching instruction to the target sensor. The target sensor receives the second working state switching instruction.

The second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state. The first working state is a working state in which the target sensor performs data measurement in a first measurement cycle. The second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period. Wherein, the second measurement period is greater than the first measurement period.

In this embodiment of the present application, when the updated subscription number of the target sensor is less than or equal to the preset threshold, the subscription status of the target sensor is updated from the subscribed status to the unsubscribed status. At this time, since the subscribing device cancels the subscription to the measurement data of the target sensor and no other subscribing device subscribes to the measurement data of the target sensor, the proxy device can send a second working state switching instruction to the target sensor so that the target sensor is replaced by the first The working state is switched to the second working state. The target sensor receives the second working state switching instruction. For details, please refer to step S203 and step S301, which will not be described again here.

Step S614: The target sensor switches the current working state to the second working state according to the second working state switching instruction, and when the second working state is the working state of performing data measurement with the second measurement cycle, performs the measurement according to the second measurement cycle. Data measurement.

For details, please refer to step S302, which will not be described again here.

For example, subscribing device 1 needs to obtain the measurement data of sensor 1, and subscribing device 2 needs to obtain sensor data. Measurement data of device 1 and sensor 2. Subscribing device 3 has subscribed to the measurement data of sensor 3 and needs to unsubscribe from the measurement data of sensor 3. At this time, the subscribing device 1 sends a subscription message to the agent device, and the subscription message carries the identification information of the sensor 1 . After receiving the subscription message, the proxy device can parse the identification information of sensor 1 based on the subscription message and determine that the subscribing device 1 needs to subscribe to the measurement data of sensor 1. At this time, the proxy device can record the correspondence between the subscribing device 1 and its target sensor. That is, the correspondence between the subscribing device 1 and the sensor 1 is recorded. The agent device obtains the subscription status of sensor 1. Assume that the subscription status of sensor 1 is unsubscribed at this time. When the proxy device detects that the subscription status of sensor 1 is unsubscribed, it updates the subscription status of sensor 1 from the unsubscribed status to the subscribed status, and changes the subscription status of sensor 1 to the subscribed status. The number of subscriptions is increased by 1, and a first working state switching instruction is sent to sensor 1, as shown in Figure 7. Assume that in this example, the sensor 1 and the agent device are connected through a field bus. When the agent device sends the first working state switching instruction to the sensor 1, it can be sent through the field bus. The sensor 1 receives the first working state switching instruction through the field bus. After receiving the first working state switching instruction, the sensor 1 learns that the working state needs to be switched to the first working state. At this time, the sensor 1 can switch the second working state to the first working state, that is, the sensor 1 switches the measurement cycle to the first measurement cycle, and starts to perform data measurement based on the first measurement cycle. The agent device can query the measurement data of sensor 1 through the field bus and obtain the measurement data of sensor 1. Since the agent device queries the measurement data of sensor 1 through the field bus, it can learn that the identification information of the target sensor corresponding to the measurement data is the identification information of sensor 1. The agent device can search for the recorded correspondence between sensor 1 and the subscribing device based on the identification information of sensor 1, and determine that the subscribing device of sensor 1 is subscribing device 1. At this time, the proxy device can send the measurement data of sensor 1 to subscribing device 1.

In the same way, subscription device 2 sends a subscription message to the proxy device. The subscription message carries the identification information of sensor 1 and sensor 2. After receiving the subscription message, the proxy device can parse the identification information of sensor 1 and the identification information of sensor 2 based on the subscription message, and determine that the subscribing device 2 needs to subscribe to the measurement data of sensor 1 and sensor 2. At this time, the proxy device can record the correspondence between the subscribing device 2 and its target sensor. That is, the correspondence between the subscribing device 2 and the sensor 1 and the sensor 2 is recorded. The agent device obtains the subscription status of sensor 1 and sensor 2. At this time, the subscription status of sensor 1 is the subscribed status. When the agent device detects that the subscription status of sensor 1 is the subscribed status, it increases the subscription number of sensor 1 by 1. Assume that the subscription status of sensor 2 is unsubscribed. When the agent device detects that the subscription status of sensor 2 is unsubscribed, it updates the subscription status of sensor 2 from the unsubscribed status to the subscribed status and increases the number of subscriptions of sensor 2. 1. Send a first working state switching command to sensor 2 at the same time, as shown in Figure 7. Assume that in this example, the sensor 2 and the proxy device are connected through a wireless network. When the proxy device sends the first working state switching instruction to the sensor 2, it can be sent through the wireless network connection. The sensor 2 receives the first working state switching instruction through the wireless network connection. After receiving the first working state switching instruction, the sensor 2 learns that the working state needs to be switched to the first working state. At this time, the sensor 2 can switch the second working state to the first working state, that is, the sensor 2 switches the measurement cycle to the first measurement cycle, and starts measuring data with the first measurement cycle as the cycle. The agent device can query the measurement data measured by sensor 1 through the field bus, obtain the measurement data of sensor 1, and determine the identification information of sensor 1. Sensor 2 uploads its measured measurement data to the agent device via a wireless network connection. At this time, the measurement data sent by the sensor 2 may carry the identification information of the sensor 2 . The proxy device can parse the measurement data sent by sensor 2 to obtain the identification information of sensor 2. The agent device searches for the recorded correspondence between sensor 1 and the subscribing device based on the identification information of sensor 1 and the identification information of sensor 2. According to the corresponding relationship, and the corresponding relationship between the remaining subscribing devices of sensor 2, it is determined that the subscribing device of sensor 1 is subscribing device 1 and subscribing device 2, and the subscribing device of sensor 2 is subscribing device 2. At this time, the proxy device can send the measurement data of sensor 1 to subscribing device 1 and subscribing device 2, and send the measurement data of sensor 2 to subscribing device 2.

Since the subscribing device 3 has subscribed to the measurement data of the target sensor 3, when the proxy device obtains the measurement data of the subscribing device 3, it can send it to the subscribing device 3. When the subscribing device 3 does not need to obtain the measurement data of the sensor 3, a subscription cancellation message is sent to the agent device. At this time, the proxy device receives the subscription cancellation message, in which the subscription cancellation message carries the identification information of sensor 3. The proxy device can learn the identification information of sensor 3 by parsing the subscription cancellation message, that is, to determine that subscribing device 3 needs to unsubscribe from sensor 3. test data. The agent device can delete the recorded correspondence between the sensor 3 and the subscribing device 3 . Get the number of subscriptions for sensor 3. Assume that the subscription quantity of sensor 3 is 1, and the agent device decreases the subscription quantity of sensor 3 by 1. At this time, the subscription quantity of sensor 3 is 0. After detecting that the subscription number of sensor 3 is 0, the agent device learns that sensor 3 has no subscription device to subscribe to its measurement data. At this time, it updates the subscription status of sensor 3 from the subscribed status to the unsubscribed status, and sends a second message to sensor 3. Working status switching instructions. After receiving the second working state switching instruction, the sensor 3 can switch its working state to the second working state, that is, stop data measurement.

It should be noted that in all embodiments of the present application, the first measurement periods of different sensors may be different or the same, and this application does not impose a limitation on this. The second measurement periods of different sensors may be the same or different, and this application does not limit this.

In this way, when the subscribing device pauses to obtain the measurement data of the target sensor, it sends a subscription cancellation message to the first device. After receiving the subscription cancellation message, the first device can determine the target sensor based on the subscription cancellation message and add the target sensor's measurement data to the first device. The subscription state is changed from the subscribed state to the unsubscribed state, and a second working state switching instruction is sent to the target sensor so that the target sensor switches from the first working state to the second working state. The data measurement frequency of the target sensor in the second working state is lower than the data measurement frequency of the target sensor in the first working state. That is, when receiving the subscription cancellation message, the target sensor can be controlled to switch to the second working state with a longer measurement period, so that when the target sensor is not needed for monitoring, the monitoring period of the target sensor can be extended, or the data measurement can be stopped, reducing the The power consumption of the target sensor when data monitoring is not required extends the battery life of the target sensor and reduces industrial production costs.

And in this application, the agent device supports multiple connection methods to connect to the sensor, and there is no need to set up multiple agent devices for sensors with different connection methods, thereby greatly reducing the number of agent devices used and further reducing industrial production costs.

Refer to Figure 8, which is a schematic flow chart of another data processing method provided by an embodiment of the present application. This embodiment describes a scenario in which the subscription device and the proxy device use MQTT (Message Queuing Telemetry Transport Protocol) to subscribe to and publish messages. Of course, the subscription device and the proxy device can also implement message subscription and publishing in other ways, and this application does not limit this. In the embodiment of this application, only the use of MQTT to implement message subscription and publishing is used as an example for explanation. As shown in Figure 8, the method includes:

Step S801: The subscribing device sends a subscription message in MQTT format to the agent device. The broker device receives subscription messages in MQTT format.

In this embodiment of the present application, the subscribing device subscribes to the measurement data of the sensor and can send the subscription to the proxy device. Read the news. At this time, the subscription message sent by the subscribing device to the agent device is in MQTT format. Among them, the identification information of the target sensor carried in the subscription message is the target subscription topic information.

It should be noted that the corresponding relationship between each sensor and the subscription topic information can be preset on the subscribing device side, so that the subscribing device can determine the corresponding subscription topic information when it needs to obtain the measurement data of which sensor.

For details, please refer to step S401, which will not be described again here.

Step S802: The agent device determines the target sensor according to the subscription message in MQTT format.

In this embodiment of the present application, the subscription message received by the proxy device is in MQTT format. At this time, the identification information of the target sensor carried in the subscription message is the target subscription topic information of the subscribing device. At this time, the proxy device obtains the mapping information between the preset sensor and the subscription topic information; and determines the target sensor based on the target subscription topic information and the mapping information between the preset sensor and the subscription topic information.

That is, the mapping information between the sensor and the subscription topic information is preset in the proxy device. After the proxy device obtains the target subscription topic information, it can search for the mapping information between the preset sensor and the subscription topic information, so as to determine the target. Subscribe to the target sensor corresponding to the topic information.

As a possible implementation method, after parsing the target subscription topic information from the subscription message, the proxy device can record the correspondence between the subscription device that carries the target subscription topic information and the target subscription topic information in the sent subscription message.

It should be noted that each sensor is set with corresponding subscription topic information, which can be the same or different. It can be set according to actual needs, and this application does not impose restrictions on this.

Step S803: The proxy device obtains the subscription status of the target sensor.

For details, please refer to step S403, which will not be described again here.

Step S804a: When the subscription status of the target sensor is an unsubscribed status, update the subscription status of the target sensor from the unsubscribed status to the subscribed status, increase the subscription number of the target sensor by a second preset value, and send the third preset value to the target sensor. A working state switching command. The target sensor receives the first working state switching instruction.

Step S804b: When the subscription status of the target sensor is subscribed, increase the subscription number of the target sensor by a second preset value.

Step S805a: The target sensor switches the current working state to the first working state according to the first working state switching instruction, and when the first working state is the working state of performing data measurement with the first measurement cycle, the target sensor performs data measurement according to the first measurement cycle. Data measurement.

Step S806: The agent device obtains the measurement data of the target sensor.

For details, please refer to step S406, which will not be described again here.

Step S807: The proxy device obtains the identification information of the target sensor, and determines at least one subscribing device of the target sensor based on the identification information of the target sensor.

In this embodiment of the present application, after receiving the measurement data sent by the target sensor, the proxy device needs to send the measurement data to the corresponding subscribing device. At this time, the proxy device determines the target subscription topic information based on the target sensor and the mapping information between the preset sensor and the subscription topic information; and determines at least one subscription device based on the target subscription topic information.

That is, after receiving the measurement data, the proxy device can learn which target sensor sent the measurement data, find the mapping information between the preset sensor and the subscription topic information, and thereby determine the target subscription subject information corresponding to the target sensor. The proxy device may determine at least one subscription device corresponding to the target subscription topic information based on the recorded correspondence between the subscription topic information and the subscription device.

Step S808: The proxy device sends measurement data to at least one subscribing device of the target sensor. At least one subscribing device receives measurement data.

In this embodiment of the present application, after determining at least one subscribing device corresponding to the target subscription topic information, the proxy device may convert the received measurement data of the target sensor into an MQTT format message and send it to the at least one subscribing device.

As a possible implementation manner, the proxy device sending measurement data to at least one subscribing device of the target sensor includes: generating a target publishing message based on the target subscription topic information and the measurement data sent by the target sensor; and sending the target publishing message to at least one subscribing device. .

That is, after determining at least one subscription device corresponding to the target subscription topic information, the agent device can generate a target publication message from the target subscription topic information and the measurement data sent by the target sensor, and the target publication message is a message in MQTT format. Send this target publish message to at least one subscribing device. After at least one subscription device receives the target publication message, it can parse the target publication message and obtain the target subscription topic information and measurement data in it, so as to know which target subscription topic information the received measurement data comes from, and then perform corresponding deal with.

Step S809: The subscribing device sends a subscription cancellation message in MQTT format to the agent device. The broker device receives subscription cancellation messages in MQTT format.

In the embodiment of this application, the subscription cancellation message is a message in MQTT format, and the identification information of the target sensor is the target subscription topic information. That is, when the subscribing device does not need to obtain relevant data of the target subscription topic information, it sends a subscription cancellation message to the proxy device. The subscription cancellation message carries target subscription topic information. The proxy device receives the subscription cancellation message.

Step S810: The agent device determines the target sensor according to the subscription cancellation message in MQTT format.

In this embodiment of the present application, after receiving the subscription cancellation message, the proxy device can parse the subscription cancellation message, and then obtain the target subscription topic information. The agent device can obtain the mapping information between the preset sensor and the subscription topic information, search the mapping information between the preset sensor and the subscription topic information according to the target subscription topic information, and determine the target sensor corresponding to the target subscription topic information.

As a possible implementation method, when the proxy device determines the target sensor, since the subscribing device no longer It is necessary to obtain the measurement data of the target sensor. At this time, the proxy device can delete the recorded correspondence between the subscription device and the target subscription topic information, so that the measurement data of the target sensor is no longer sent to the subscribing device.

Step S811: The proxy device obtains the subscription number of the target sensor and reduces the subscription number of the target sensor by a first preset value.

For details, please refer to step S611, which will not be described again here.

Step S812: When the number of subscriptions to the target sensor is equal to or less than the preset threshold, the proxy device obtains the subscription status of the target sensor and updates the subscription status of the target sensor from the subscribed status to the unsubscribed status.

For details, please refer to step S612, which will not be described again here.

Step S813: When the subscription state of the target sensor is updated from the subscribed state to the unsubscribed state, the proxy device sends a second working state switching instruction to the target sensor. The target sensor receives the second working state switching instruction.

For details, please refer to step S613, which will not be described again here.

Step S814: The target sensor switches the current working state to the second working state according to the second working state switching instruction, and when the second working state is the working state of performing data measurement with the second measurement cycle, performs the measurement according to the second measurement cycle. Data measurement.

For details, please refer to step S302, which will not be described again here.

Figure 9 shows a schematic structural diagram of a proxy device provided by an embodiment of the present application. As shown in Figure 9, the proxy device includes:

The subscription publishing service module 901 is configured to receive the subscription cancellation message and send the subscription cancellation message to the subscription management module 902.

Among them, the subscription cancellation message carries the identification information of the target sensor;

The subscription management module 902 is configured to determine the target sensor according to the subscription cancellation message; and send a second working state switching instruction to the target sensor.

The second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state. The first working state is a working state in which the target sensor performs data measurement in a first measurement period. The second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period. Wherein, the second measurement period is greater than the first measurement period.

As a possible implementation, the subscription management module 902 is configured to determine the connection mode of each target sensor when there are at least two target sensors; and send the second job to the target sensor according to the connection mode of each target sensor. State switching instructions.

Among them, according to the connection mode of each target sensor, sending working state switching instructions to the target sensor includes:

When the target sensor and the agent device are connected through the field bus, the working state switching instruction is sent to the target sensor through the field bus; or, when the target sensor and the agent device are connected through the network, the working state switching instruction is sent to the target sensor through the network connection. .

As a possible implementation manner, the network connection includes an Ethernet network connection or a wireless network connection.

As a possible implementation, the subscription management module 902 is used to obtain the subscription number of the target sensor and reduce the subscription number of the target sensor by a first preset value; when the subscription number of the target sensor is equal to or less than When the preset threshold is reached, the subscription status of the target sensor is obtained, and the subscription status of the target sensor is updated from the subscribed status to the unsubscribed status. When the subscription state of the target sensor is updated from the subscribed state to the unsubscribed state, a second working state switching instruction is sent to the target sensor.

As a possible implementation, the subscription publishing service module 901 is used to receive subscription messages. And send the subscription message to the subscription management module 902.

The subscription management module 902 is used to determine the target sensor according to the subscription message. Get the subscription status of the target sensor. When the subscription status of the target sensor is unsubscribed, update the subscription status of the target sensor from the unsubscribed status to the subscribed status, increase the subscription number of the target sensor by a second preset value, and send the first working status to the target sensor. Switch command.

As a possible implementation, the subscription management module 902 is configured to determine the connection mode of each target sensor when there are at least two target sensors; and send the first work to the target sensor according to the connection mode of each target sensor. State switching instructions.

As a possible implementation manner, the subscription management module 902 is configured to increase the subscription number of the target sensor by a second preset value when the subscription status of the target sensor is subscribed.

As a possible implementation, as shown in Figure 10, the above proxy device also includes:

The subscription publishing client module 903 is used to obtain the measurement data of the target sensor and send the measurement data to the subscription publishing service module 901.

The subscription publishing service module 901 is used to obtain the identification information of the target sensor, determine at least one subscribing device of the target sensor based on the identification information of the target sensor, and send measurement data to at least one subscribing device of the target sensor.

As a possible implementation method, the subscription publishing client module 903 is used to query the target sensor through the field bus when the target sensor and the agent device are connected through the field bus, and obtain the measurement data of the target sensor; or, when the target sensor and the agent device are connected, When connected through the network, the measurement data sent by the target sensor is received through the network connection.

As a possible implementation method, the above-mentioned proxy device implements the subscription function of the subscribing device to the sensor measurement data through the MQTT protocol. At this time, the above-mentioned subscription publishing service module 901 integrates the function of the MQTT server. The subscription publishing client module 903 integrates the functions of the MQTT client. The identification information of the target sensor includes target subscription topic information.

The above subscription messages and subscription cancellation messages are all messages in MQTT format.

At this time, the subscription management module 902 is used to obtain the mapping information between the preset sensor and the subscription topic information; determine the target sensor according to the target subscription topic information and the mapping information between the preset sensor and the subscription topic information. device.

As a possible implementation, the subscription publishing service module 901 is configured to determine the target subscription topic information based on the mapping information between the target sensor and the preset sensor and the subscription topic information; determine at least one subscription device based on the target subscription topic information; The target subscribes to the topic information and the measurement data sent by the target sensor to generate a target publishing message; and sends the target publishing message to at least one subscribing device.

Among them, the target publishing message includes the message queue telemetry transmission MQTT format message.

Figure 11 shows a schematic structural diagram of a sensor provided by an embodiment of the present application. As shown in Figure 11, the sensor includes:

The receiving module 1101 is used to receive the second working state switching instruction.

The second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state. The first working state is a working state in which the target sensor performs data measurement in a first measurement cycle. The second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement cycle. Wherein, the second measurement period is greater than the first measurement period.

The processing module 1102 is configured to switch the current working state to the second working state according to the second working state switching instruction, and when the second working state is the working state of performing data measurement with the second measurement cycle, perform the data measurement according to the second measurement cycle. Perform data measurements.

As a possible implementation, the receiving module 1101 is configured to receive a first working state switching instruction.

The processing module 1102 is configured to switch the current working state to the first working state according to the first working state switching instruction, and when the first working state is the working state of performing data measurement with the first measurement cycle, perform the data measurement according to the first measurement cycle. Perform data measurements.

As a possible implementation, as shown in Figure 12, the above sensors also include:

The sending module 1103 is used to send measurement data to the proxy device.

Figure 13 shows a schematic structural diagram of a data processing system provided by an embodiment of the present application. As shown in Figure 13, the data processing system includes an agent device 1301, at least one sensor 1302 and at least one subscription device 1303.

Among them, the proxy device 1301 is connected to at least one sensor 1302 and at least one subscription device 1303.

At least one subscription device 1303 is used to send a subscription cancellation message to the proxy device 1301. The subscription cancellation message carries the identification information of the target sensor.

The agent device 1301 includes the agent device described in the above embodiment; at least one sensor includes the sensor described in the above embodiment.

As a possible implementation, at least one subscription device 1303 is also used to send a subscription message to the proxy device 1301. The subscription message carries identification information of the target sensor.

Corresponding to the above embodiments, this application also provides an electronic device. FIG. 14 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. The electronic device 1400 may include: a processor 1401, a memory 1402, and a communication unit 1403. These components communicate through one or more buses. Those skilled in the art can understand that the structure of the server shown in the figure does not constitute a limitation on the embodiment of the present invention. It can be either a bus structure or a star structure. , may also include more or fewer parts than shown, or combine certain components, or different arrangements of components.

The communication unit 1403 is used to establish a communication channel so that the storage device can communicate with other devices. Receive user data from other devices or send user data to other devices.

The processor 1401 is the control center of the storage device, using various interfaces and lines to connect various parts of the entire electronic device, by running or executing software programs and/or modules stored in the memory 1402, and calling the software programs stored in the memory 1402. data to perform various functions of the electronic device and/or process data. The processor may be composed of an integrated circuit (IC), for example, it may be composed of a single packaged IC, or it may be composed of multiple packaged ICs connected with the same function or different functions. For example, the processor 1401 may only include a central processing unit (CPU). In the embodiment of the present invention, the CPU may be a single computing core or may include multiple computing cores.

The memory 1402 is used to store execution instructions of the processor 1401. The memory 1402 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM). Erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

When the execution instructions in the memory 1402 are executed by the processor 1401, the electronic device 1400 is enabled to execute some or all of the steps in the embodiment shown in Figure 2 or Figure 3.

In specific implementation, the present invention also provides a storage medium, wherein the storage medium can store a program, and when executed, the program can include some or all of the steps in each embodiment of the data processing method provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

Those skilled in the art can clearly understand that the technology in the embodiments of the present invention can be implemented by means of software plus the necessary general hardware platform. Based on this understanding, the technical solutions in the embodiments of the present invention can be embodied in the form of software products in essence or those that contribute to the existing technology. The computer software products can be stored in storage media, such as ROM/RAM. , magnetic disk, optical disk, etc., including a number of instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in various embodiments or certain parts of the embodiments of the present invention.

The same and similar parts among the various embodiments in this specification can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple. For relevant details, please refer to the description in the method embodiment.

Claims

A data processing method, characterized in that it is applied to a proxy device, and the method includes:

Receive a subscription cancellation message; the subscription cancellation message carries identification information of the target sensor;

Determine the target sensor according to the subscription cancellation message;

Send a second working state switching instruction to the target sensor; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is when the target sensor The first measurement period is a working state in which data measurement is performed; the second working state is a working state in which the target sensor stops data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period. cycle.
The method according to claim 1, characterized in that, before sending the second working state switching instruction to the target sensor, the method further includes:

Obtain the subscription number of the target sensor and reduce the subscription number of the target sensor by a first preset value;

When the subscription number of the target sensor is equal to or less than the preset threshold, obtain the subscription status of the target sensor, and update the subscription status of the target sensor from the subscribed status to the unsubscribed status;

Sending a second working state switching instruction to the target sensor includes:

When the subscription state of the target sensor is updated from the subscribed state to the unsubscribed state, a second working state switching instruction is sent to the target sensor.
The method according to claim 2, further comprising:

Receive a subscription message; the subscription message carries identification information of the target sensor;

Determine the target sensor according to the subscription message;

Obtain the subscription status of the target sensor;

When the subscription state of the target sensor is an unsubscribed state, the subscription state of the target sensor is updated from an unsubscribed state to a subscribed state, the subscription number of the target sensor is increased by a second preset value, and The target sensor sends a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state.
The method according to claim 3, further comprising:

When the subscription status of the target sensor is subscribed, the subscription number of the target sensor is increased by a second preset value.
The method according to claim 4, further comprising:

Obtain the measurement data of the target sensor;

Obtain the identification information of the target sensor, and determine at least one subscribing device of the target sensor based on the identification information of the target sensor;

The measurement data is sent to at least one subscribing device of the target sensor.
The method according to claim 5, characterized in that sending a working state switching instruction to the target sensor, wherein the working state switching instruction includes a first working state switching instruction or a second working state switching instruction, including:

When there are at least two target sensors, determine the connection method of each target sensor;

According to the connection mode of each target sensor, the working state switching instruction is sent to the target sensor respectively. make.
The method according to claim 6, wherein sending a working state switching instruction to the target sensor according to the connection mode of each target sensor includes:

When the target sensor and the agent device are connected through the field bus, a working state switching instruction is sent to the target sensor through the field bus; or,

When the target sensor and the proxy device are connected through the network, a working state switching instruction is sent to the target sensor through the network connection.
The method according to claim 7, characterized in that obtaining the measurement data of the target sensor includes:

When the target sensor and the agent device are connected through the field bus, the agent device queries the target sensor through the field bus and obtains the measurement data of the target sensor; or,

When the target sensor and the proxy device are connected through the network, the measurement data sent by the target sensor is received through the network connection.
The method according to claim 7 or 8, characterized in that the network connection includes: an Ethernet connection or a wireless network connection.
A data processing method, characterized in that it is applied to sensors, and the method includes:

Receive a second working state switching instruction; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is that the target sensor performs a first measurement cycle The working state of data measurement; the second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period;

According to the second working state switching instruction, the current working state is switched to the second working state, and when the second working state is the working state of performing data measurement with the second measurement cycle, the data is measured according to the second measurement cycle. Measurement.
The method according to claim 10, further comprising:

Receive a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state;

According to the first working state switching instruction, the current working state is switched to the first working state, and when the first working state is a working state in which data measurement is performed with the first measurement cycle, data is measured according to the first measurement cycle. Measurement.
The method according to claim 10 or 11, further comprising:

Send measurement data to the agent device.
A proxy device, characterized by including:

A subscription publishing service module, configured to receive a subscription cancellation message and send the subscription cancellation message to the subscription management module; the subscription cancellation message carries the identification information of the target sensor;

A subscription management module, configured to determine the target sensor according to the subscription cancellation message;

Send a second working state switching instruction to the target sensor; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is when the target sensor The working state of performing data measurement in the first measurement cycle; the second working state is the target sensing The device does not perform data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period.
The proxy device according to claim 13, characterized in that:

The subscription management module is used to obtain the subscription number of the target sensor and reduce the subscription number of the target sensor by a first preset value;

When the subscription number of the target sensor is equal to or less than the preset threshold, obtain the subscription status of the target sensor, and update the subscription status of the target sensor from the subscribed status to the unsubscribed status;

The subscription management module is configured to send a second working state switching instruction to the target sensor when the subscription state of the target sensor is updated from the subscribed state to the unsubscribed state.
The proxy device according to claim 14, characterized in that:

The subscription publishing service module is used to receive subscription messages and send the subscription messages to the subscription management module; the subscription messages carry identification information of the target sensor;

The subscription management module is used to determine the target sensor according to the subscription message;

Obtain the subscription status of the target sensor;

When the subscription state of the target sensor is an unsubscribed state, the subscription state of the target sensor is updated from an unsubscribed state to a subscribed state, the subscription number of the target sensor is increased by a second preset value, and The target sensor sends a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state.
The proxy device according to claim 15, characterized in that:

The subscription management module is configured to increase the subscription number of the target sensor by a second preset value when the subscription status of the target sensor is subscribed.
The proxy device according to claim 16, further comprising:

The subscription publishing client module is used to obtain the measurement data of the target sensor and send the measurement data sent by the target sensor to the subscription publishing service module;

The subscription publishing service module is used to obtain the identification information of the target sensor, and determine at least one subscription device of the target sensor based on the identification information of the target sensor;

The measurement data is sent to at least one subscribing device of the target sensor.
The proxy device according to claim 17, characterized in that:

The subscription management module is configured to determine the connection mode of each target sensor when there are at least two target sensors;

According to the connection mode of each target sensor, a working state switching instruction is sent to the target sensor respectively; the working state switching instruction includes: a first working state switching instruction or a second working state switching instruction.
The proxy device according to claim 18, characterized in that:

The subscription management module is configured to send a working state switching instruction to the target sensor through the field bus when the target sensor and the agent device are connected through the field bus; or,

When the target sensor and the proxy device are connected through the network, a working state switching instruction is sent to the target sensor through the network connection.
The proxy device according to claim 19, characterized in that:

The subscription publishing client module is used to query the target sensor through the field bus and obtain the measurement data of the target sensor when the target sensor and the agent device are connected through the field bus; or,

When the target sensor and the proxy device are connected through the network, the measurement data sent by the target sensor is received through the network connection.
The agent device according to claim 19 or 20, characterized in that the network connection includes: an Ethernet network connection or a wireless network connection.
A sensor, characterized in that it includes:

A receiving module, configured to receive a second working state switching instruction; the second working state switching instruction is used to instruct the target sensor to switch from the first working state to the second working state; the first working state is when the target sensor The first measurement period is a working state in which data measurement is performed; the second working state is a working state in which the target sensor does not perform data measurement or performs data measurement in a second measurement period; wherein the second measurement period is greater than the first measurement period;

A processing module configured to switch the current working state to the second working state according to the second working state switching instruction, and when the second working state is the working state of performing data measurement with the second measurement cycle, perform the processing according to the second working state. Data measurement is performed in two measurement cycles.
The sensor according to claim 22, characterized in that:

The receiving module is used to receive a first working state switching instruction; the first working state switching instruction is used to instruct the target sensor to switch from the second working state to the first working state;

The processing module is configured to switch the current working state to the first working state according to the first working state switching instruction, and when the first working state is the working state of performing data measurement with the first measurement cycle, Data measurement is performed according to the first measurement cycle.
The sensor according to claim 22 or 23, further comprising:

The sending module is used to send measurement data to the agent device.
A data processing system, characterized by including: an agent device, at least one sensor and at least one subscription device;

Wherein, the agent device is connected to at least one sensor and at least one subscription device;

At least one subscription device, configured to send a subscription cancellation message to the agent device; the subscription cancellation message carries the identification information of the target sensor;

The agent device includes the agent device according to any one of claims 13-21; the at least one sensor includes the sensor according to any one of claims 22-24.
An electronic device, characterized in that it includes a processor and a memory, and the memory stores a computer program. When the computer program is executed, the electronic device performs the method described in any one of claims 1-9. Or perform the method described in any one of claims 10-12.
A storage medium, characterized in that the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the method described in any one of claims 1-9 or to execute the claim The method described in any one of 10-12.