CN109743717B - Data processing method and device, terminal equipment and storage medium - Google Patents
Data processing method and device, terminal equipment and storage medium Download PDFInfo
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- CN109743717B CN109743717B CN201910169928.5A CN201910169928A CN109743717B CN 109743717 B CN109743717 B CN 109743717B CN 201910169928 A CN201910169928 A CN 201910169928A CN 109743717 B CN109743717 B CN 109743717B
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Abstract
The embodiment of the application discloses a data processing method, a data processing device, terminal equipment and a storage medium, and relates to the technical field of wireless communication. The data processing method comprises the following steps: the MAC layer of the terminal equipment sends a data request to the superior node equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance; the MAC layer controls a receiving module of the physical layer to enter a working state; the receiving module receives a response message returned by the superior node equipment, wherein the response message comprises a state value, and the state value is used for indicating data to be received or data not to be received of the terminal equipment; the MAC layer judges whether the state value is a designated value or not according to the response message; if the state value is a designated value, the MAC layer determines that the terminal equipment has no data to be received and controls the receiving module to enter a dormant state from a working state. The method does not need the processing circuit of the upper layer of the MAC layer, and reduces the power consumption of part of the processing circuit.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a data processing method, an apparatus, a terminal device, and a storage medium.
Background
At present, a plurality of short-distance wireless communication technologies exist, and the short-distance wireless communication technologies have the characteristics of short distance, low power consumption, low speed and low cost. Therefore, the technology can be embedded into various mobile devices or terminal devices to meet the requirements of low cost and low power consumption of wireless networks. In order to reduce power consumption, the terminal devices powered by the batteries are all provided with a sleep function. However, in order to enable the terminal device to receive the Data to be received sent to the terminal device while the terminal device is in a sleep state, the terminal device needs to be intermittently woken up to send a Data Request message (such as a Data Request message) to the upper node device to inquire whether the Data to be received needs to be acquired. At present, most modules of terminal equipment need to be awakened intermittently to participate in a task of a data receiving process to complete a normal sending and receiving process, so that the time consumption is long, the power consumption is high, and the actual application is not facilitated.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present application provide a data processing method, an apparatus, a terminal device, and a storage medium, which can reduce power consumption of a part of processing circuits.
In a first aspect, an embodiment of the present application provides a data processing method, which is applied to a terminal device, and the method includes: the MAC layer of the terminal equipment sends a data request to the superior node equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance; the MAC layer controls a receiving module of the physical layer to enter a working state; the receiving module receives a response message returned by the superior node device, wherein the response message comprises a state value, and the state value is used for indicating that the terminal device has data to be received or has no data to be received; the MAC layer judges whether the state value is a designated value or not according to the response message; and if the state value is a designated value, the MAC layer determines that the terminal equipment has no data to be received and controls the receiving module to enter a dormant state from the working state.
In a second aspect, an embodiment of the present application provides a data processing apparatus, which is applied to a terminal device, and the apparatus includes: the terminal equipment comprises a data request module, a receiving awakening module, a response receiving module, a data judging module and a receiving dormancy module, wherein the data request module is used for sending a data request to the superior node equipment by an MAC layer of the terminal equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance; the receiving and awakening module is used for the MAC layer to control the receiving module of the physical layer to enter a working state; the response receiving module is used for the receiving module to receive a response message returned by the superior node device, wherein the response message comprises a state value, and the state value is used for indicating that the terminal device has data to be received or has no data to be received; the data judgment module is used for judging whether the state value is a designated value or not by the MAC layer according to the response message; and the receiving dormant module is used for determining that the terminal equipment has no data to be received by the MAC layer if the state value is a designated value, and controlling the receiving module to enter a dormant state from the working state.
In a third aspect, an embodiment of the present application provides a terminal device, including: one or more processors; a memory; one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to perform the data processing method provided by the first aspect described above.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a program code is stored in the computer-readable storage medium, and the program code may be called by a processor to execute the data processing method provided in the first aspect.
The scheme provided by the application is applied to a terminal device, a data request is stored in a sending cache queue of a sending module of a physical layer in advance, so that an MAC layer of the terminal device sends the data request to a superior node device through the sending module of the physical layer, then the MAC layer controls a receiving module of the physical layer to enter a working state, so that the receiving module receives a response message returned by the superior node device, wherein the response message comprises a state value used for indicating the data to be received or the data not to be received of the terminal device, then the MAC layer judges whether the state value is a designated value or not according to the response message, if the state value is the designated value, the MAC layer determines that the terminal device does not have the data to be received, and controls the receiving module to enter a dormant state from the working state, so that under the condition that a processing circuit of the superior layer of the MAC layer does not need to participate, the data request is sent and the response message is processed, and the power consumption of a processing circuit of an upper layer of an MAC layer is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic diagram of an application environment suitable for the embodiment of the present application.
Fig. 2 shows a schematic diagram of a communication protocol architecture suitable for use in embodiments of the present application.
FIG. 3 shows a flow diagram of a data processing method according to one embodiment of the present application.
FIG. 4 shows a flow diagram of a data processing method according to another embodiment of the present application.
Fig. 5 shows a flowchart of step S270 in the data processing method according to the embodiment of the present application.
FIG. 6 shows a block diagram of a data processing apparatus according to an embodiment of the present application.
Fig. 7 is a block diagram of a terminal device for executing a data processing method according to an embodiment of the present application.
Fig. 8 is a storage unit for storing or carrying program codes for implementing a data processing method according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Currently, short-range wireless communication technology is often embedded in various mobile devices or terminal devices to meet the demand of low cost and low power consumption of wireless networks. In order to reduce power consumption, the terminal devices powered by the batteries are all provided with a sleep function. However, in order to enable the terminal device to receive the data to be received sent to the terminal device while the terminal device is in a sleep state, the terminal device needs to be awakened intermittently to send a data request message to the upper-level node device to inquire whether the data to be received needs to be acquired.
For example, in a wireless network using Zigbee (Zigbee peak protocol)/ieee 802.15.4 protocol, in order to enable a periodically sleeping network device to receive Data to be received sent to the periodically sleeping network device while the periodically sleeping network device is sleeping, a Media Access Control (MAC) layer message format called "Data Request" is used. Each time the network device is awakened, it will ask whether there is new data to be received by sending the message to the upper node device. And the superior node equipment replies a corresponding response message according to the actual situation so as to inform the network equipment whether to perform corresponding actions.
At present, most modules of a terminal device need to be intermittently awakened to participate in a task of a data receiving process, so that a normal sending of a data request and a receiving processing process of a response message can be completed. For example, in a wireless network using the Zigbee/ieee802.15.4 protocol, after receiving an Acknowledgement (ACK) returned by an upper node device, a wireless transceiver sends a relevant primitive to an upper layer (e.g. a network layer) of a MAC layer according to a field (FP ═ 0 indicates that there is no data to be received) of a Frame Protected (protocol Frame), and then the upper layer of the MAC layer determines whether further actions, such as sleep or data processing, are required.
However, for a device sensitive to power consumption (for example, powered by a button cell), if a response message (indicating that there is no message to be received) with FP being 0 is received, further actions, such as turning off the power of the MAC portion or turning off the wireless transceiver module, need to be performed through communication and confirmation with the layers above the MAC layer.
In view of the above problems, the inventors have studied and proposed a data processing method, an apparatus, a terminal device, and a storage medium in the embodiments of the present application, to perform automatic transmission of a data request and determination processing on a response packet in an MAC layer, so as to reduce participation of processing circuits in layers above the MAC layer, thereby reducing power consumption of the device.
An application scenario of the data processing method provided in the embodiment of the present application is described below.
Referring to fig. 1, an interactive system 10 is provided in an embodiment of the present application, where the interactive system 10 includes a terminal device 100 and an upper node device 200 communicatively connected to the terminal device 100. The terminal device 100 and the upper node device 200 are in communication connection by using a short-range wireless communication technology, and the short-range wireless communication technology may include a ZigBee/ieee802.15.4 protocol.
In the embodiment of the present application, the terminal device 100 is a device that can enter a sleep state at regular time, and the terminal device 100 has strict requirements for power consumption control. For example, the terminal device 100 may be a device powered by a button battery. In some embodiments, the terminal device 100 in the sleep state does not transmit or receive any data, and when the terminal device 100 is in the sleep state, if there is data to be transmitted to the terminal device 100, the upper node device 200 in communication connection with the terminal device 100 may store the data. In some embodiments, the terminal device 100 may wake up periodically and may continue to enter the sleep state after waking up for a certain period of time. When the terminal device 100 is woken up, a data request may be sent to the upper node device 200 to inquire of the upper node device 200 whether there is data sent to the terminal device 100 by another device during the sleep of the terminal device 100.
In the embodiment of the present application, the upper node device 200 stores data to be received of the terminal device 100, and the upper node device 200 may perform information interaction with the terminal device 100. In some embodiments, the upper node device 200 may receive a data request sent by the terminal device 100, and return a corresponding response message to the terminal device 100 according to the actual situation of the cached data to be received.
In this embodiment, after sending the data request to the upper node device 200, the terminal device 100 may receive a response message returned by the upper node device 200, and the terminal device 100 may further perform a further action according to the response message, for example, enter a sleep state or perform a receiving process of data to be received.
It should be noted that, in a wireless network to which the Zigbee/ieee802.15.4 protocol is applied, a network device includes three device types, namely, a Coordinator (Coordinator), a Router (Router), and a terminal device, where the Coordinator is responsible for management and maintenance of the network, including establishment of the network, primary address allocation, and the like, and is a core part of the network; the router has a routing function, and can also be used as a father node to receive a request of a new node for joining the network and allocate an address for the father node; the terminal equipment has no forwarding function and is the end of the network. Therefore, in some embodiments, the upper node device 200 may be a coordinator or a router.
Referring to fig. 2, an embodiment of the present application provides a schematic diagram of a communication protocol architecture adopted by a terminal device 100, where the communication protocol architecture 20 includes: the physical layer 21, the MAC layer 22, and the above layers 23 of the MAC layer. When the terminal device 100 transmits data, the upper layer 23 of the MAC layer generates a data packet, and processes the data packet in a step-by-step encapsulation mode.
In the embodiment of the present application, the above layer 23 of the MAC layer may be at least one of a network layer and an application layer. In some embodiments, the application layer is configured to encapsulate data to be transmitted into an application layer protocol data unit (application layer packet) and transmit the application layer protocol data unit to the network layer; the network layer is used for receiving the application layer protocol data unit from the application layer, encapsulating the application layer protocol data unit into a network layer protocol data unit (data packet of the network layer) and transmitting the network layer protocol data unit to the MAC layer.
In the embodiment of the present application, the MAC layer 22 is configured to receive a data packet (network layer protocol data unit) from the upper layer 23 of the MAC layer and encapsulate the data packet into a MAC layer protocol data unit (MAC frame). In some embodiments, the MAC layer may write the encapsulated MAC frame into a transmit buffer queue of the physical layer.
In the embodiment of the present application, the physical layer 21 is configured to receive the MAC frame from the MAC layer 22 and encapsulate the MAC frame into a physical layer protocol data unit (bit stream). The physical layer 21 may send data to be sent (i.e., physical layer protocol data units) after being encapsulated stage by stage, and may also receive physical layer protocol data units sent by other devices.
In some embodiments, the physical layer 21 may further include other modules, such as a sending module and a receiving module, where the sending module is used to send data (physical layer protocol data unit) to other devices, and the receiving module is used to receive data (physical layer protocol data unit) sent by other devices.
It will be appreciated that normally each layer only sends data or commands to the upper or lower layer to which it is directly adjacent.
Based on the interactive system and the communication protocol architecture, the embodiment of the application provides a data processing method, which is applied to the terminal device. The following describes a specific data processing method.
Referring to fig. 3, an embodiment of the present application provides a data processing method, which is applicable to a terminal device, where the terminal device is in communication connection with a higher node device, and the data processing method may include:
step S110: the MAC layer of the terminal equipment sends a data request to the superior node equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance.
At present, each time a terminal device sends a data request to an upper node device, it is usually necessary to generate a data request message through a layer (e.g., a network layer) above a MAC layer of the terminal device, which results in power consumption of a processing circuit above the MAC layer when sending the data request. Therefore, in the embodiment of the present application, the data request may be stored in the sending buffer queue of the sending module of the physical layer in advance, so that the MAC layer of the terminal device may directly send the data request to the upper node device through the sending module of the physical layer, and it is not necessary to generate a data request packet each time the data request is sent, and thus, the involvement of the layers above the MAC layer is not required, and the power consumption of the processing circuit above the MAC layer is reduced.
It can be understood that, under normal conditions, the packet loads (payload) of the data requests sent by the terminal device each time are the same, so that the MAC layer of the terminal device only needs to obtain a data request packet from the upper layer of the MAC layer once, and then encapsulate the data request packet into a data request of the MAC layer, and store the data request in the sending buffer queue of the sending module, so that when the subsequent terminal device needs to send the data request packet, the MAC layer of the terminal device can directly send the data request to the upper-level node device through the sending module of the physical layer, and does not need to obtain the data request packet from the upper layer of the MAC layer, thereby eliminating the need for processing of the upper layer of the MAC layer, and reducing the power consumption of the processing circuit of the upper layer of the MAC layer.
Step S120: the MAC layer controls a receiving module of the physical layer to enter a working state.
After the MAC layer sends a data request to the upper node device through the sending module of the physical layer, the MAC layer may control the receiving module of the physical layer to enter a working state, so that the terminal device may receive a response packet returned by the upper node device in time.
It is understood that, in order to save device power consumption, the MAC layer may turn off the receiving module of the physical layer when sending a data request. When the MAC layer finishes sending the data request, the MAC layer controls the receiving module of the physical layer to enter a working state.
In some embodiments, to save device power consumption, the MAC layer may control the sending module of the physical layer to enter a sleep state when sending the data request.
Step S130: the receiving module receives a response message returned by the superior node device, wherein the response message comprises a state value, and the state value is used for indicating data to be received or data not to be received of the terminal device.
In some embodiments, after the MAC layer controls and controls the receiving module of the physical layer to enter the working state, the receiving module of the physical layer may monitor a communication channel between the terminal device and the upper node device, so as to receive a response message returned by the upper node device in time, where the response message includes a state value, and the state value is used to indicate that the terminal device has data to be received or does not have data to be received.
It is understood that the terminal device sends a data request to the superordinate node device in order to inquire whether the superordinate node device stores the data to be received of the terminal device. Therefore, after the upper node device receives the data request sent by the terminal device, it will return the corresponding response message to the terminal device according to the actual storage condition of the data to be received.
After receiving the response message returned by the superior node device, the terminal device may analyze and determine the response message to obtain an inquiry result, where the inquiry result may represent that the superior node device stores the data to be received of the terminal device or that the superior node device does not store the data to be received of the terminal device.
In some embodiments, the terminal device analyzes and determines the response message, which may be according to a state value in the response message. It is understood that different state values correspond to different determination results. Thus, the status value may be used to indicate that the terminal device has data to receive or no data to receive.
In some embodiments, the state value may be 0 or 1, specifically, when the state value is 1, the state value may be used to indicate that the terminal device has data to receive, and when the state value is 0, the state value may be used to indicate that the terminal device has no data to receive. Of course, the state value may be other values, and is not limited herein.
Step S140: and the MAC layer judges whether the state value is a designated value or not according to the response message.
After the receiving module of the terminal device receives the response message returned by the upper node device, the MAC layer of the terminal device may determine whether the state value is a designated value according to the response message, so that the subsequent MAC layer may perform further actions according to the determination result.
The specified value may be a state value representing that the terminal device does not have data to be received, so that the MAC layer may determine whether the received response data is a response packet indicating that the terminal device does not have data to be received. Wherein, the designated value can be reasonably set according to the specific state value. For example, if the status value is 1, indicating that the terminal device has data to receive, and if the status value is 0, indicating that the terminal device has no data to receive, the specified value may be 0, so that the MAC layer may obtain a determination result that the terminal device has no data to receive according to whether the status value in the response message is 0.
Step S150: if the state value is a designated value, the MAC layer determines that the terminal equipment has no data to be received and controls the receiving module to enter a dormant state from a working state.
In the current response packet processing method, after receiving a response packet returned by an upper node device, an MAC layer of a terminal device needs to transmit the response packet to an upper layer of the MAC layer, so that the upper layer of the MAC layer receives the response packet transmitted by the MAC layer, and the upper layer of the MAC layer can determine whether the terminal device has data to be received according to a state value in the response packet, and determine whether to perform a further action, such as entering a sleep state or performing data processing.
However, for a device sensitive to power consumption (for example, powered by a button cell), if the MAC layer receives a response message (for example, the status value is 0) indicating that the terminal device does not have data to be received, the MAC layer is further required to transmit the response message to the upper layer of the MAC layer, and the upper layer of the MAC layer confirms further execution actions according to the response message, such as turning off the power of the MAC portion and turning off the power of the transmitting module and the receiving module. As described above, not only power consumption for processing by the layers above the MAC layer but also power consumption when the MAC layer and the physical layer wait for execution of an operation command is required. Therefore, in the embodiment of the application, the response message is directly judged and processed in the MAC layer, and the response message does not need to be transmitted to the upper layer of the MAC layer for processing, so that the power consumption of the processing circuit of the upper layer of the MAC layer is reduced.
Specifically, after the judgment result that the state value is the designated value is obtained, the MAC layer may determine that the terminal device has no data to be received, and then the MAC layer may directly control the receiving module to enter the sleep state from the working state without notifying the above layers of the MAC layer, thereby reducing power consumption of the above layer processing circuit of the MAC layer. It can be understood that, when the receiving module enters the sleep state, the terminal device does not receive data.
In the data processing method provided by the embodiment of the application, a data request is stored in a sending cache queue of a sending module of a physical layer in advance, so that an MAC layer of a terminal device sends the data request to a higher-level node device through the sending module of the physical layer, then the MAC layer controls a receiving module of the physical layer to enter a working state, so that the receiving module receives a response message returned by the higher-level node device, wherein the response message includes a state value used for indicating data to be received or data not to be received by the terminal device, then the MAC layer judges whether the state value is a specified value according to the response message, if the state value is the specified value, the MAC layer determines that the terminal device does not have the data to be received, and controls the receiving module to enter a dormant state from the working state, so that under the condition that a processing circuit of the upper layer of the MAC layer is not required, the data request is sent and the response message is processed, and the power consumption of a processing circuit of an upper layer of an MAC layer is reduced.
Referring to fig. 4, another embodiment of the present application provides a data processing method, which is applicable to a terminal device, where the terminal device is communicatively connected to a higher node device, and the data processing method may include:
step S200: the MAC layer of the terminal equipment acquires a data request from the upper layer of the MAC layer at the designated time and stores the data request in a sending cache queue of a sending module, wherein the designated time is the time when the terminal equipment needs to send the data request to the superior node equipment for the first time.
It can be understood that, the MAC layer of the terminal device needs to directly send a data request to the upper node device through the sending module of the physical layer, and when it is not necessary to obtain a data request packet to the upper layer of the MAC layer, the data request may be stored in the sending buffer queue of the sending module in advance, so that when the MAC layer needs to send a data request, the data request in the sending buffer queue is directly read and sent.
In some embodiments, the MAC layer of the terminal device may obtain a data request to an upper layer of the MAC layer at a specified time, and then store the data request in a sending buffer queue of the sending module, where the specified time is a time when the terminal device needs to send the data request to an upper node device for the first time.
That is to say, after the terminal device enters the sleep state, when the terminal device is awakened for the first time, that is, when the terminal device needs to send a data request to the upper node device for the first time, the upper layer of the MAC layer of the terminal device needs to generate a data request message, and then the data request message is transmitted to the MAC layer, after the MAC layer acquires the data request message, the data request message is encapsulated into a data request of the MAC layer and stored in a sending cache queue of a sending module of the physical layer, so that when the data request is sent in the subsequent time, the data request in the sending cache queue can be directly read, the data request message does not need to be acquired to the upper layer of the MAC layer, and power consumption required when the upper layer of the MAC layer generates the data request is reduced.
Step S210: the MAC layer of the terminal equipment sends a data request to the superior node equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance.
Step S220: the MAC layer controls a receiving module of the physical layer to enter a working state.
Step S230: the receiving module receives a response message returned by the superior node device, wherein the response message comprises a state value, and the state value is used for indicating data to be received or data not to be received of the terminal device.
In some embodiments, the contents of step S210, step S220, and step S230 may refer to the contents of the above embodiments, and are not described herein again.
Further, automatic retransmission of the data request may be set to avoid a situation that the terminal device cannot receive the response packet returned by the upper node device due to a failure in data request transmission. Therefore, after the MAC layer of the terminal device transmits a data request to the upper node device through the transmission module of the physical layer, the data processing method includes:
if the receiving module does not receive the response message returned by the superior node device within the set time period, the MAC layer sends the data request to the superior node device again through the sending module, wherein the sequence number value of the data request is consistent with the sequence number value of the data request sent last time.
In some embodiments, after the MAC layer of the terminal device sends the data request to the upper node device through the sending module of the physical layer, if the receiving module does not receive the response packet returned by the upper node device within the set time period, it may be considered that the data request is sent unsuccessfully, and the MAC layer needs to send the data request to the upper node device through the sending module again.
The set time period is the longest waiting time required to be met by waiting for receiving the response message when the MAC layer needs to resend the data request. The set time period can be pre-stored in a storage space of the MAC layer, and can be set reasonably according to specific application conditions. For example, the set time period may be 100us, 200us, 400us, or the like.
It should be noted that the data request sent by the MAC layer of the terminal device usually includes a sequence number value, where the sequence number value is a unique identifier of each data request, and a value range of the sequence number value may be set according to a specific application environment, for example, in a zigbee network, the length of the sequence number value is 1 byte, and the value range is 0 to 0 xFF. It can be understood that the upper node device may determine whether the terminal device has sent a new data request according to the sequence number value in the received data request. For example, when the sequence number value in the last received data request is 55, if the sequence number value in the data request received this time is still 55, the higher node device may consider that the terminal device has not received the previous response packet, and may return the previous response packet again. If the sequence number value in the data request received this time is still 56, the upper node device may consider that the terminal device has received the previous response packet, and send a new data request.
In addition, in order to ensure that the response message returned by the upper node device each time corresponds to the data request sent by the MAC layer of the terminal device each time, the response message returned by the upper node device usually includes the above sequence number value, where the sequence number value in the response message is the same as the sequence number value in the data request. For example, if the sequence number value of the data request sent by the MAC layer of the terminal device is 2, the sequence number value of the response packet corresponding to the data request returned by the upper node device is also 2.
Therefore, the receiving module does not receive the response message returned by the upper node device within the set time period, which can also be understood as that the receiving module does not receive the response message corresponding to the data request and returned by the upper node device within the set time period, that is, does not receive the response message whose sequence number value in the response message is the same as that in the data request.
It can be understood that, since the previous data request fails to be sent, the data request needs to be sent again, that is, when the MAC layer sends the data request to the upper node device again through the sending module, the sequence number value of the currently sent data request needs to be consistent with the sequence number value of the previously sent data request.
Step S240: and the MAC layer judges whether the state value is a designated value or not according to the response message.
Step S250: if the state value is a designated value, the MAC layer determines that the terminal equipment has no data to be received and controls the receiving module to enter a dormant state from a working state.
In some embodiments, the content of step S240 and step S250 may refer to the content of the above embodiments, and is not described herein again.
In some embodiments, if the status value is not a specified value, the MAC layer may determine that the terminal device has data to receive, and at this time, it needs to notify the upper layers of the MAC layer, so that the upper layers of the MAC layer perform the next processing according to the actual situation, for example, perform the receiving processing of the data to be received, and the like. Therefore, referring to fig. 4 again, the data processing method may further include:
step S260: and if the state value is not the designated value, the MAC layer generates prompt data and transmits the prompt data to the upper layer of the MAC layer, wherein the prompt data is used for representing the data to be received by the terminal equipment.
In some embodiments, after obtaining the determination result that the state value is not the designated value, the MAC layer may generate prompt data and transmit the prompt data to the upper layer of the MAC layer, where the prompt data is used to represent data to be received by the terminal device, so that the upper layer of the MAC layer performs the next execution action. Therefore, only when the state value of the response message is not the designated value, the MAC layer needs to perform communication transmission with the layer above the MAC layer, and the processing circuit above the MAC layer needs to participate, so that the power consumption of the terminal equipment is reduced.
In other embodiments, the specified value may also be a state value representing data to be received by the terminal device, so that the MAC layer may determine whether the received response packet is a response packet indicating the data to be received by the terminal device. For example, if the status value is 1, the terminal device is indicated to have data to be received, and if the status value is 0, the terminal device is indicated to have no data to be received, the specified value may be 1, so that the MAC layer may obtain a determination result of the data to be received by the terminal device according to whether the status value in the response message is 1.
In some embodiments, the timed transmission of data requests may be implemented at the MAC layer of the terminal device. Specifically, referring to fig. 4 again, the data processing method may further include:
step S270: after the preset duration of sending the data request, the MAC layer sends the data request to the upper node device through the sending module again.
In some embodiments, after the MAC layer of the terminal device sends the data request for the preset duration, the MAC layer may send the data request to the upper node device again through the sending module, so as to implement the timed sending of the data request. The preset duration is a fixed time interval between the terminal device and the previous node device for sending data requests twice, and may be pre-stored in the storage space of the MAC layer, where the value may be 1s, 2s, and the like.
As an implementation manner, when the terminal device is awakened for the first time, the upper layers of the MAC layer transmit the preset duration to the MAC layer, and after the MAC layer obtains the preset duration, the MAC layer stores the preset duration in the storage space, so that the MAC layer can start the next data request transmission according to the preset duration.
In some embodiments, the timed sending of the data request may be implemented by using a timer provided in the sending module.
Since the sequence number value of each data request sent is different, in some embodiments, the MAC layer of the terminal device needs to process the sequence number value of the data request. Specifically, referring to fig. 5, after the preset duration of sending the data request, the sending, by the MAC layer, the data request to the upper node device through the sending module again may include:
step S271: and after the preset duration of the data request is sent, acquiring a sequence number value of the data request.
In some embodiments, after the MAC layer sends the preset duration of the data request to the upper node device through the sending module, the MAC layer needs to obtain a sequence number value of the data request, so as to determine a sequence number value of a next data request according to a sequence number value of a previous data request.
In some embodiments, each time the MAC layer sends a data request to the upper node device through the sending module, the sequence number value in each data request may be stored, or only the sequence number value in the current data request may be stored, so that the MAC layer may obtain the sequence number value of the last data request.
Step S272: the MAC layer adds 1 to the serial number value of the data request to obtain a new data request;
in Zigbee network communication, in order to distinguish the same data requests sent, the sequence number value of a data request is increased by 1 every time a terminal device sends a data request. Therefore, in some embodiments, after acquiring the sequence number value of the last data request, the MAC layer of the terminal device may add 1 to the sequence number value of the last data request to obtain the sequence number value of the next data request, so as to obtain a new data request. For example, if the sequence number value of the last acquired data request is 60, the sequence number value of the new data request is 61.
In some embodiments, the MAC layer may store an initial sequence number value of the data request when the terminal device is first awakened, and the number of successful transmissions of the data request from the time the terminal device is first awakened to the current time, so as to determine the sequence number value of the next data request according to the initial sequence number value and the number of successful transmissions. For example, the initial sequence number value is 0, and if the number of successful transmissions of a data request is 10 from the time when the terminal device is first awakened to the current time, the sequence number value of the next data request is 10.
Step S273: the MAC layer transmits a new data request to the upper node device again through the transmission module.
It can be understood that, after the preset duration of sending the data request, the MAC layer may send the obtained new data request to the upper node device through the sending module again. Thus, the timing transmission of the next data request is realized without involvement of the upper layers of the MAC layer.
Step S280: and repeating the step that after the preset time length of the data request is sent, the MAC layer sends the data request to the superior node equipment through the sending module again.
In some embodiments, the step of sending the data request to the upper node device by the MAC layer through the sending module again after the preset duration of sending the data request may be repeated, so that the MAC layer sends the data request once every other preset duration, and thus, the timed sending of each data request is realized without participation of the upper layers of the MAC layer.
It can be understood that the preset duration may be a sleep duration of the terminal device, that is, after the preset duration that the terminal device sends the data request, the preset duration is a next awakening time of the terminal device, so that the MAC layer may implement automatic sending of the data request when the terminal device is awakened next time.
Further, the terminal device and the superior node device are in communication connection by adopting a Zigbee protocol or an ieee802.15.4 protocol. The Zigbee protocol or the IEEE802.15.4 protocol is a short-range wireless communication protocol. When the terminal device and the upper node device are in communication connection by adopting a Zigbee protocol or an ieee802.15.4 protocol, the upper node device may be a coordinator or a router.
It can be understood that, in a wireless network to which the Zigbee/ieee802.15.4 protocol is applied, the amount of transmitted data is small, and therefore, in most cases, data to be received of the terminal device is not stored in the upper node device, so that the state values in most of the response messages received by the terminal device are all 0, and further in most cases, the processing circuits of the layers above the MAC layer of the terminal device are in a closed state, which greatly reduces the power consumption of the device, and increases the service life of the device.
According to the data processing method provided by the embodiment of the application, the data request is acquired from the upper layer of the MAC layer at the designated time and is stored in the sending cache queue of the sending module of the physical layer, so that the MAC layer of the terminal device can directly send the data request to the upper node device through the sending module of the physical layer, and then the preset time length is set, so that the MAC layer sends the data request to the upper node device through the sending module after sending the preset time length of the data request, and the data request is sent regularly without participation of a processing circuit of the upper layer of the MAC layer. In addition, the MAC layer can automatically update the sequence number value in the data request sent each time, and when the state value in the response message returned by the upper node equipment is not a specified value, the MAC layer can transmit prompt data to the layers above the MAC layer, so that the analysis, judgment and processing of the response message in the MAC layer are realized, the power consumption of the processing circuit of the layers above the MAC layer is reduced, and the power consumption of the terminal equipment is reduced.
Referring to fig. 6, a block diagram of a data processing apparatus 500 according to an embodiment of the present application is shown, where the data processing apparatus is applied to a terminal device, and the terminal device is communicatively connected to a superior node device, and the apparatus may include: a data request module 510, a receive wakeup module 520, a response receiving module 530, a data determination module 540, and a receive sleep module 550. The data request module 510 is configured to send, by the MAC layer of the terminal device, a data request to the upper node device through a sending module of the physical layer, where the data request is stored in a sending buffer queue of the sending module in advance; the receiving and waking module 520 is used for the MAC layer to control the receiving module of the physical layer to enter a working state; the response receiving module 530 is configured to receive a response message returned by the upper node device, where the response message includes a state value, and the state value is used to indicate that the terminal device has data to be received or does not have data to be received; the data judgment module 540 is used for the MAC layer to judge whether the state value is a designated value according to the response packet; the receiving sleep module 550 is configured to determine, by the MAC layer, that the terminal device has no data to be received if the state value is a specified value, and control the receiving module to enter a sleep state from a working state.
In some embodiments, the data processing apparatus 500 may further include: and a data uploading module. The data uploading module is used for generating prompt data by the MAC layer if the state value is not a designated value, transmitting the prompt data to the upper layer of the MAC layer, and using the prompt data to represent the data to be received by the terminal equipment.
In some embodiments, the data processing apparatus 500 may further include: and a data acquisition module. The data acquisition module is used for the MAC layer of the terminal equipment to acquire a data request from the upper layer of the MAC layer at a specified time and store the data request in a sending cache queue of the sending module, wherein the specified time is the time when the terminal equipment needs to send the data request to the superior node equipment for the first time.
In some embodiments, the data processing apparatus 500 may further include: an automatic sending module and a repeating module. The automatic sending module is used for sending the data request to the superior node equipment through the sending module again by the MAC layer after the preset time length of the data request is sent; the repeating module is used for repeating the step that the MAC layer sends the data request to the superior node equipment through the sending module again after the preset time length of the data request is sent.
In some embodiments, the data request includes a sequence number value, and the automatic sending module may be specifically configured to: after the preset duration of the data request is sent, acquiring a serial number value of the data request; the MAC layer adds 1 to the serial number value of the data request to obtain a new data request; the MAC layer transmits a new data request to the upper node device again through the transmission module.
In some embodiments, the data processing apparatus 500 may further include: and a failure retransmission module. The failure retransmission module is used for sending the data request to the superior node equipment by the MAC layer through the sending module again if the receiving module does not receive the response message returned by the superior node equipment within the set time period, wherein the sequence number value of the data request is consistent with the sequence number value of the data request sent last time.
In some embodiments, the terminal device and the upper node device are communicatively connected by using a Zigbee protocol or an IEEE802.15.4 protocol.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and modules may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. In the several embodiments provided in the present application, the coupling between the modules may be electrical, mechanical or other type of coupling. In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
Referring to fig. 7, a block diagram of a terminal device according to an embodiment of the present application is shown. The terminal device 100 may be a terminal device that can be powered by a battery and is in a sleep mode periodically, such as a water meter/gas meter reading device, a wireless data acquisition device, an alarm device, a temperature and humidity monitoring device, and the like. The terminal device 100 in the present application may include one or more of the following components: a processor 110, a memory 120, a communication module 130, and one or more applications, wherein the one or more applications may be stored in the memory 120 and configured to be executed by the one or more processors 110, the one or more programs configured to perform the methods as described in the aforementioned method embodiments.
The Memory 120 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). The memory 120 may be used to store instructions, programs, code sets, or instruction sets. The memory 120 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like. The storage data area may also store data created by the terminal device 100 in use, and the like.
The communication module 130 is used for receiving and transmitting electromagnetic waves, and implementing interconversion between the electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices. The communication module 130 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. The communication module 130 may communicate with various networks such as the internet, an intranet, a preset type of wireless network, or other devices through a preset type of wireless network. The preset types of wireless networks described above may include cellular telephone networks, wireless local area networks, or metropolitan area networks. The Wireless network of the above-mentioned preset type may use various Communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (W-CDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), bluetooth, Wireless Fidelity (WiFi) (e.g., IEEE802.11 a, IEEE802.11 b, IEEE802.1 g and/or IEEE802.11 n), Voice over Internet protocol (VoIP), world wide web for Wireless Access (Wi-Max), other protocols for email, instant messaging, and short messaging, and any other suitable messaging protocol.
Referring to fig. 8, a block diagram of a computer-readable storage medium according to an embodiment of the present application is shown. The computer-readable storage medium 800 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. Alternatively, the computer-readable storage medium 800 includes a non-volatile computer-readable storage medium. The computer readable storage medium 800 has storage space for program code 810 to perform any of the method steps of the method described above. The program code can be read from or written to one or more computer program products. The program code 810 may be compressed, for example, in a suitable form.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (8)
1. A data processing method is applied to a terminal device, wherein the terminal device is in communication connection with a superior node device, and the method comprises the following steps:
the MAC layer of the terminal equipment acquires a data request from the upper layer of the MAC layer at a designated time and stores the data request in a sending cache queue of a sending module, wherein the designated time is the time when the terminal equipment needs to send the data request to the upper node equipment for the first time;
the MAC layer of the terminal equipment sends a data request to the superior node equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance;
the MAC layer controls a receiving module of the physical layer to enter a working state;
the receiving module receives a response message returned by the superior node device, wherein the response message comprises a state value, and the state value is used for indicating that the terminal device has data to be received or has no data to be received;
the MAC layer judges whether the state value is a designated value or not according to the response message;
if the state value is a designated value, the MAC layer determines that the terminal equipment has no data to be received and controls the receiving module to enter a dormant state from the working state;
after the preset duration of sending the data request, the MAC layer sends the data request to the superior node equipment through the sending module again;
and repeating the step that the MAC layer sends the data request to the superior node equipment through the sending module again after the preset duration of sending the data request is repeated.
2. The method of claim 1, further comprising:
and if the state value is not a designated value, the MAC layer generates prompt data and transmits the prompt data to the layers above the MAC layer, wherein the prompt data is used for representing the data to be received by the terminal equipment.
3. The method according to claim 1, wherein the data request includes a sequence number value, and after the preset duration of sending the data request, the MAC layer sends the data request to the superordinate node device again through the sending module, including:
after the preset duration of the data request is sent, acquiring a sequence number value of the data request;
the MAC layer adds 1 to the serial number value of the data request to obtain a new data request;
and the MAC layer sends the new data request to the superior node equipment through the sending module again.
4. The method according to any one of claims 1 to 3, wherein after the MAC layer of the terminal device transmits the data request to the upper node device through a transmission module of a physical layer, the method comprises:
and if the receiving module does not receive a response message returned by the superior node equipment within a set time period, the MAC layer sends the data request to the superior node equipment again through the sending module, wherein the sequence number value of the data request is consistent with the sequence number value of the data request sent last time.
5. The method according to any one of claims 1 to 3, wherein the terminal device and the upper node device are communicatively connected by using a Zigbee protocol or an IEEE802.15.4 protocol.
6. A data processing apparatus, applied to a terminal device, where the terminal device is in communication connection with a superior node device, the apparatus comprising:
a data request module, configured to, at a specified time, an MAC layer of the terminal device obtains a data request from an upper layer of the MAC layer, and store the data request in a sending buffer queue of a sending module, where the specified time is a time when the terminal device needs to send the data request to the upper node device for the first time; the MAC layer of the terminal equipment sends a data request to the superior node equipment through a sending module of a physical layer, and the data request is stored in a sending cache queue of the sending module in advance; after the preset duration of sending the data request, the MAC layer sends the data request to the superior node equipment through the sending module again; repeating the step that the MAC layer sends the data request to the superior node equipment through the sending module again after the preset duration of sending the data request is repeated;
a receiving and awakening module, configured to control, by the MAC layer, the receiving module of the physical layer to enter a working state;
a response receiving module, configured to receive, by the receiving module, a response message returned by the superior node device, where the response message includes a state value, and the state value is used to indicate that the terminal device has data to be received or does not have data to be received;
the data judgment module is used for judging whether the state value is a designated value or not by the MAC layer according to the response message;
and the receiving dormancy module is used for determining that the terminal equipment has no data to be received by the MAC layer if the state value is a designated value, and controlling the receiving module to enter a dormancy state from the working state.
7. A terminal device, wherein the terminal device is communicatively connected to a superior node device, comprising:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to perform the method of any of claims 1-5.
8. A computer-readable storage medium, having stored thereon program code that can be invoked by a processor to perform the method according to any one of claims 1 to 5.
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| CN113660756A (en) * | 2021-08-04 | 2021-11-16 | 深圳市海曼科技股份有限公司 | ZigBee-based light control method and control system and intelligent home system |
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