CN114785630B - Wake-up control method, device, electronic equipment and storage medium of CAN network segment - Google Patents

Abstract

The application provides a wake-up control method, a wake-up control device, electronic equipment and a storage medium of a CAN network segment, wherein the wake-up control method comprises the following steps: determining a cross-network segment function set corresponding to a target CAN network segment according to the target CAN network segment to which the target node belongs; acquiring a state signal of a target node; determining a target cross-network segment function of the state signal of the target node meeting the preset state condition of the target node in a cross-network segment function set corresponding to the target CAN network segment; and controlling the network segment related to the target cross-network segment function to keep an awake state. The method and the device CAN realize wake-up control among different CAN network segments, and avoid the problems of low charging efficiency, false wake-up and the like after the vehicle is powered down caused by that all CAN network segments sleep together.

Description

Wake-up control method, device, electronic equipment and storage medium of CAN network segment

technical field

The present application relates to the technical field of network management of a vehicle network, and more specifically, to a wake-up control method, device, electronic device and storage medium of a CAN network segment.

Background technique

CAN (Controller Area Network, Controller Area Network) bus technology has been maturely applied in the field of automotive communication due to its reliability, real-time performance and flexibility. With the popularization of automobile intelligence, electrification, and networking, there are more and more controllers based on CAN network in the vehicle communication network. Due to the technical limitations of CAN network technology, each CAN network allows the controller to be connected Quantities are limited. At present, the CAN network in the vehicle is divided into multiple CAN network segments, such as body CAN (Body CAN, BCAN), power CAN (Power CAN, PCAN) and new energy CAN (Energy CAN, ECAN), etc., each CAN network segment contains multiple nodes.

In the prior art, the same sleeping and waking strategy is used to control all CAN network segments on the vehicle, that is, when the nodes of all network segments meet the sleep conditions, the gateway controls all CAN network segments to sleep at the same time. Since all the nodes in the vehicle are forced to sleep at the same time, it may cause certain functions in some vehicles, especially after the CAN bus is in the OFF state, such as charging in the OFF state, which may easily cause low charging efficiency, false wakeup, etc. question.

Contents of the invention

In view of this, an embodiment of the present application proposes a wake-up control method, device, electronic device, and storage medium of a CAN network segment, so as to improve the above-mentioned problems.

According to an aspect of the embodiment of the present application, a wake-up control method of a CAN network segment is provided, including: according to the target CAN network segment to which the target node belongs, determining the cross-network segment function set corresponding to the target CAN network segment; The cross-network segment function set includes at least one cross-network segment function function configuration information, the function configuration information includes the preset state condition of the target node; obtains the state signal of the target node; in the cross-network segment function set It is determined that the state signal of the target node satisfies the target cross-network segment function of the preset state condition of the target node; and the CAN network segment involved in the target cross-network segment function is controlled to remain awake.

According to an aspect of the embodiment of the present application, a wake-up control device for a CAN network segment is provided, including: a cross-network segment function set determination module, configured to determine the target CAN network segment according to the target CAN network segment to which the target node belongs The corresponding cross-network segment function set; the cross-network segment function set includes at least one cross-network segment function function configuration information, and the cross-network segment function function configuration information includes the preset state condition of the target node; the first acquisition A module for obtaining the status signal of the target node; a target cross-network segment function determination module for determining in the cross-network segment function set that the status signal of the target node satisfies the preset status condition of the target node The target cross-network segment function; the control module is used to control the CAN network segment involved in the target cross-network segment function to remain awake.

According to an aspect of an embodiment of the present application, there is provided an electronic device, including: a processor; a memory, on which computer-readable instructions are stored, and when the computer-readable instructions are executed by the processor, the above The wake-up control method of the CAN network segment.

According to an aspect of the embodiment of the present application, a computer-readable storage medium is provided, on which computer-readable instructions are stored, and when the computer-readable instructions are executed by a processor, the wake-up of the CAN network segment as described above is realized Control Method.

In the scheme of this application, by obtaining the state signal of the target node, and according to the target CAN network segment to which the target node belongs, determine the cross-network segment function set corresponding to the target CAN network segment, so that the target CAN network segment corresponding In the cross-network segment function set, it is determined that the state signal of the target node satisfies the target cross-network segment function of the preset state condition of the target node. Since the cross-network segment function refers to the function that needs to be realized by nodes from at least two CAN network segments, so in After determining the target cross-network segment function, the CAN gateway can control the CAN network segments involved in the target cross-network segment function to keep awake based on the target cross-network segment function, so as to realize the wake-up control of different CAN network segments.

In the scheme of the present application, only the CAN gateway determines in the cross-network segment set of the target CAN network segment that the status signal of the target node meets the target cross-gateway function of the corresponding requirement, and wakes up the target cross-network segment function based on the target cross-network segment function The CAN network segment involved, in this way, the CAN network segment that needs to be woken up can be controlled by the CAN gateway to maintain the wake-up state, avoiding the control of all CAN network segments on the vehicle through the co-sleep and wake-up strategy, resulting in charging after the vehicle is powered off Problems such as low efficiency, false wake-up, and waste of battery power and power feeding.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application. Apparently, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

Fig. 1 is a flow chart of a wake-up control method for a CAN network segment according to an embodiment of the present application.

Fig. 2 is a flow chart showing specific steps of step 130 according to an embodiment of the present application.

Fig. 3 is a flow chart showing specific steps after step 130 according to an embodiment of the present application.

Fig. 4 is a flowchart of specific steps after step 330 according to an embodiment of the present application.

Fig. 5 is a flow chart showing specific steps after step 130 according to another embodiment of the application.

Fig. 6 is a flow chart showing specific steps after step 510 according to an embodiment of the present application.

Fig. 7 is a block diagram of a wake-up control device for a CAN network segment according to an embodiment of the present application.

Fig. 8 is a hardware structural diagram of an electronic device according to an exemplary embodiment of the present application.

Through the above-mentioned drawings, specific embodiments of the present invention have been shown, which will be described in more detail below. The concepts of the present invention are explained to those skilled in the art.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the concepts of example embodiments to those skilled in the art.

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

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the application. However, those skilled in the art will appreciate that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, devices, steps, etc. can be used. In other instances, well-known methods, apparatus, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.

The block diagrams shown in the drawings are merely functional entities and do not necessarily have to correspond to physically separate entities. That is, these functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices entity. The flow charts shown in the drawings are only exemplary illustrations, and do not necessarily include all contents and operations/steps, nor must they be performed in the order described. For example, some operations/steps can be decomposed, and some operations/steps can be combined or partly combined, so the actual order of execution may be changed according to the actual situation.

The application provides a wake-up control method of a CAN network segment, and Fig. 1 is a flowchart of a wake-up control method of a CAN network segment shown according to an embodiment of the application, the method is applied to a CAN gateway in a vehicle, and the CAN gateway and the vehicle At least two CAN network segments in the communication connection, each CAN network segment includes at least one node. As shown in Figure 1, the method specifically includes the following steps:

Step 110, according to the target CAN network segment to which the target node belongs, determine the cross-network segment function set corresponding to the target CAN network segment; the cross-network segment function set includes at least one cross-network segment function function configuration information, and the cross-network segment function refers to Functions that need to be implemented by nodes from at least two CAN network segments; function configuration information includes preset state conditions of target nodes.

Multiple nodes can exist at the same time on any CAN network segment, and the nodes can be ECUs (Electronic Control Unit, Electronic Control Unit) with different functions connected on the CAN network segment, or different devices that are specifically controlled. In the implementation of this application In this example, any node can be used as the target node.

The target CAN network segment refers to the CAN network segment to which the target node belongs. For example, if the nodes in the BCAN network segment are set to include car doors (such as left front door, left rear door, right front door, etc.), trunk door, wiper, etc., then if the target node is a car door, the BCAN network segment to which the door belongs is Target CAN network segment.

In some embodiments, the network segment identification of each CAN network segment can be stored in association with the node representation of the nodes included in the CAN network segment in advance. On this basis, based on the node identification of the target node, the target node can be queried correspondingly. The target CAN segment to which the node belongs.

The cross-network segment function set corresponding to the target CAN network segment includes the cross-network segment function jointly realized by the target CAN network segment and at least one other CAN network segment. For example, when the target CAN network segment is the B CAN network segment, the cross-network segment function set may include at least one CAN network segment among the P CAN network segment, C CAN network segment, Info CAN network segment, and D CAN network segment. B The cross-network segment function realized by CAN network segments.

In some embodiments, the preset state condition of the target node may be that the signal value of the state signal of the target node is within a set range, for example, if a node (assumed to be node A) is a temperature sensor for detecting engine temperature, in a In the cross-network segment function, if the temperature range of node A is set to (20°C, 90°C), then if the temperature indicated by the status signal reported by node A is determined to be 50°C, it can be seen that the current temperature of node A The value is within the corresponding temperature range, therefore, the temperature value of node A satisfies the corresponding required state condition.

In some embodiments, the preset state condition of the state signal of the target node may also be whether the state signal of the target node is at a specified level.

Specifically, when the specified level of the preset state condition of the state signal of the target node is a recessive level, and the state signal of the target node is also a recessive level, the required state condition is met at this time, so that the state of the target node can be determined Target cross-segment function. Optionally, when the specified level of the preset state condition of the state signal of the target node is a dominant level, and the state signal of the target node is also a dominant level, the required state condition is met at this time, so that the target node can be determined The target cross-network segment function.

In some other embodiments, the required state condition corresponding to the state signal of the target node may be whether the signal value of the state signal of the target node reaches the signal value threshold, and if it reaches the signal value threshold, the state signal of the target node satisfies the corresponding State conditions are required so that the target cross-segment capabilities of the target node can be determined. The specific preset state condition of the state signal of the target node can be set according to actual needs, and is not specifically limited here. Specifically, there may be multiple target cross-network segment functions determined at the same time, which are not specifically limited here.

In some other embodiments, the function configuration information of the cross-network segment function includes but not limited to the nodes required to participate in the cross-network segment function, and the required state conditions of the nodes required to participate.

The required state condition corresponding to the node is used to indicate the condition that the state of the node needs to meet. For example, if the node is used to collect the engine temperature, and the state signal of the node is used to indicate the temperature value of the collected engine, then the node The corresponding desired state condition may be a temperature range set for the engine temperature. For another example, if the node is a node for checking the opening and closing state of the car door, the state signal of the node is used to indicate the detected opening and closing state of the car door, and the required state condition corresponding to the node may be that the door is in the open state. Certainly, the same node may have the same or different corresponding requirement state conditions in different cross-network segment functions, which may be set according to actual needs.

Step 120, acquiring the status signal of the target node.

The state signal of the target node is used to indicate the state of the target node, for example, a signal indicating the speed of the vehicle, a signal indicating the direction of the vehicle speed, a signal indicating the state of the button, a signal indicating the state of the door, etc.

For example, when the target node is a car door, the status signal of the target node can be a signal detected by a sensor on the car door indicating the door opening and closing state. When the car door is opened, the sensor can report the collected signal indicating that the car door is opened to CAN gateway, specifically, the signal indicating that the door is opened can be sent to the ECU controlling the sensor, and then the ECU forwards the signal indicating that the door is opened to the CAN gateway.

In some embodiments, the status signal of the target node can be presented as a level signal. Since the CAN network segment uses a differential signal for transmission, in the differential signal, logic 0 and logic 1 are the voltage difference between two differential signal lines To represent. Specifically, when it is logic 1, when the voltage difference between the two differential signal lines is less than 0.5V, it is called a recessive level (Recessive); when it is logic 0, the voltage difference between the two differential signal lines is greater than 0.9V, Called dominant level (Dominant). Therefore, different information can be expressed by logic 0 and logic 1 respectively. For example, for a sensor that detects the door opening and closing state, logic 0 can be used to indicate that the door is opened, and logic 1 can be used to indicate that the door is closed.

Step 130, determine the target cross-network segment function whose state signal of the target node satisfies a preset condition in the cross-network segment function set.

In some embodiments, the CAN gateway can query the cross-segment set corresponding to the target CAN network segment, so as to determine that the state signal of the target node satisfies the corresponding target cross-segment function of the required state condition.

In some embodiments, after the CAN gateway receives the status signal reported by each node, it stores it according to the CAN network segment to which the node belongs. After that, the CAN gateway can query the cross-network segment corresponding to each CAN network segment according to the set query frequency. Function set, wherein, the query frequency of the CAN gateway to query the cross-network segment function set should not be lower than the maximum transmission frequency of the node's status signal. It can be understood that the maximum transmission frequency of the node's status signal indicates the status signal of the target node. Update frequency, if the query frequency is lower than the maximum transmission frequency of the status signal of the target node, the status signal of the target node will be missed, which may lead to errors in the wake-up control or sleep control of the CAN network segment.

The target cross-network segment function refers to the cross-network segment function in which the state signal of the target node satisfies the preset state condition of the target node in the set of cross-network segment functions corresponding to the target CAN network segment.

In some other embodiments, the target cross-network segment function is in the cross-network segment function set corresponding to the target CAN network segment, the participating nodes include the target node, and the state signal of the target node satisfies the corresponding cross-network segment of the required state condition Function. For example, if the CAN network segment to which node B1 belongs is CAN network segment M1, the cross-network segment function set corresponding to CAN network segment M1 includes cross-network segment function T, and the nodes required to participate in the cross-network segment function T include node B1 and Node B2, wherein, the required state condition set by the cross-network segment function T for node B1 is condition C1, and the required state condition set for node B2 is condition C2, if the target node is node B1, and according to node B1 If the current state signal satisfies the condition C1, it can be determined that the cross-network segment function T is the target cross-network segment function. It can be understood that there may be one or more target inter-network segment functions, depending on specific circumstances.

In other embodiments, as shown in FIG. 2, step 130 includes:

In step 210, it is determined in the inter-network segment function set that the nodes requiring participation include the reference inter-network segment function of the target node.

The reference cross-segment function means that in the set of cross-segment functions corresponding to the target CAN network segment, the nodes required to participate include the cross-segment function of the target node. For example, the CAN network segment to which the target node E1 belongs is CAN network segment B, and the corresponding cross-network segment function set of B CAN network segment includes cross-network segment function X, cross-network segment function Y, cross-network segment function Z, cross-network segment Segment function X requires the participating nodes to be E1 and node F2; cross-network segment function Y requires participating nodes to include E2 and node F1; cross-network segment function Z requires participating nodes to be E1 and F3, which can be determined by referring to the cross-network segment function Cross-network segment function X and cross-network segment function Z. It can be understood that there may be one or more reference cross-network segment functions, depending on the actual situation.

Step 220, obtaining the required status condition set for the target node from the function configuration information referring to the cross-network segment function.

Step 230, if the state signal of the target node satisfies the required state condition set for the target node, then determine the reference cross-network segment function as the target cross-network segment function.

In some embodiments, if the state signal of the target node does not meet the required state condition set for the target node, it can be determined that the reference cross-network segment function of the target node does not need to be implemented, and the reference cross-network segment function is not the target cross-network segment Function. It can be understood that if the state signal of the target node does not meet the required state condition set for the target node, the CAN network segment of the cross-network segment function of the target node remains in the current state.

Please continue to refer to FIG. 1, step 140, control the CAN network segment involved in the target inter-network segment function to keep awake.

When a CAN network segment is in the wake-up state, all nodes included in the CAN network segment are in the wake-up state, and the nodes in the wake-up state can work normally; All the nodes are in the dormant state. When the node is in the dormant state, the node works in a low power consumption mode, that is, only some modules in the node work, and most of the modules do not work, so as to save the power consumption of the node.

If before step 140, the CAN network segment involved in the target cross-network segment function is in a dormant state, then in step 140, the controller in each CAN network segment in the CAN network segment involved in the target cross-network segment function sends a wake-up signal (also called wake-up frame), so that the controller wakes up all the nodes in the CAN network segment according to the wake-up signal.

If before step 140, the CAN network segment involved in the target cross-network segment function is in a dormant state, then in step 140, control each node in the CAN network segment to remain in an awake state.

In the solution of this application, by obtaining the state signal of the target node, and according to the target CAN network segment to which the target node belongs, the cross-network segment function set corresponding to the target CAN network segment is determined, and then the cross-segment function set corresponding to the target CAN network segment can be determined. In the network segment function set, it is determined that the state signal of the target node meets the corresponding target cross-network segment function. Since the cross-network segment function is a function that requires the participation of nodes from at least two CAN network segments, it is determined that the target cross-segment After the network segment function, the CAN gateway can control at least two CAN network segments involved in the target cross-network segment function to keep awake based on the target cross-network segment function, so as to realize the wake-up control of different CAN network segments.

In the scheme of the present application, only the CAN gateway determines in the cross-network segment set of the target CAN network segment that the status signal of the target node meets the target cross-gateway function of the corresponding requirement, and wakes up the target cross-network segment function based on the target cross-network segment function The CAN network segment involved, in this way, the CAN network segment that needs to be woken up can be controlled by the CAN gateway to maintain the wake-up state, avoiding the control of all CAN network segments on the vehicle through the co-sleep and wake-up strategy, resulting in charging after the vehicle is powered off Problems such as low efficiency, false wake-up, and waste of battery power and power feeding.

In some embodiments, the function configuration information also includes the activation conditions of the corresponding cross-network segment function and the participating nodes required by the target cross-network segment function; as shown in FIG. 3, after step 130, the method further includes:

Step 310, acquiring status signals of participating nodes.

Step 320, judging whether the state signal of the participating node satisfies the activation condition corresponding to the target inter-network segment function.

The activation condition corresponding to the target cross-network segment function may be defined by associating the preset states corresponding to the participating nodes of the target cross-network segment based on a logical relationship. Specifically, the logical relationship may be logical AND, logical OR, logical NOT, etc. For example, if the cross-network segment function F is the target cross-network segment function, wherein the activation conditions corresponding to the cross-network segment function F are condition X1 and condition X2 and condition X3, wherein condition X1 is the preset state condition corresponding to node A1, Condition X2 is the preset state condition corresponding to node A2, and condition X3 is the preset state condition corresponding to node A3. If it is determined that the state signal of node A1 satisfies condition X1, the state signal of node A2 satisfies condition X2, and the state signal of node A3 satisfies If the condition X3 is satisfied, it can be determined that the activation condition corresponding to the target cross-network segment function is met.

In some embodiments, the participating nodes of different target cross-network segments can overlap, and the state signals between the nodes can also overlap, but the state signals of the same node between different target cross-network segment functions are not allowed to have Conflicts, understandably, contradictory goals across network segments cannot be performed simultaneously. For example, one target cross-segment function is to turn on the lights in the car when the door is opened, and the participating nodes are required to control the door node and the node to control the lights in the car; another target cross-segment function is to power off the vehicle When it is in the OFF position, the lights in the car are turned off, and the participating nodes are required to have a node that controls the door and a node that controls the power. In fact, the status signal of the node that controls the lights in the car cannot both indicate that the lights in the car are turned on. It also indicates that the lights in the car are turned off, so the functions of the two cross-network segments cannot be performed at the same time.

Step 330, if the activation condition corresponding to the target cross-network segment function is met, activate the target cross-network segment function.

As described above, the cross-network segment function is a function that needs to be realized by nodes from at least two CAN network segments. It can be understood that the cross-network segment function is realized by linking nodes in at least two CAN network segments . Realizing the cross-segment function is equivalent to realizing the linkage between multiple nodes, that is, controlling the controlled node to execute the controlled action when the status signal of the determined conditional node meets the activation condition. The conditional node refers to the node defined by the activation condition corresponding to the cross-network segment function, and the controlled node refers to the node defined by the cross-network segment function that needs to perform a controlled action. For example, if the cross-segment function needs to be realized: turn on the air conditioner in the car when the door is closed and the windows are closed, the condition nodes corresponding to the cross-segment function include the sensor and the window that detect the opening and closing state of the car door, The controlled node is the air conditioner; the activation condition is that the door is closed and the window is closed; the controlled action is that the air conditioner in the car is turned on.

In some embodiments, the cross-network segment function set corresponding to the target CAN network segment may be presented in the form of a cross-network segment function table. The target CAN network segment can be shown in Table 1 below, including multiple cross-network segment functions, status signals of nodes required to participate in each cross-network segment function, and activation conditions corresponding to each cross-network segment function.

Table 1

In the above Table 1, the information in the column of "state signal of the node requiring participation" and "activation condition" for each cross-network segment function can be regarded as the function configuration information of the cross-network segment function.

The status signals of nodes required by different cross-network segment functions can be the same or different. For example, the status signal of a node that realizes cross-network segment function 1 includes signal 1, and the status signal of a node that realizes cross-network segment function 2 can also include signal 1.

In some embodiments, the state signal obtained in step 310 may be the state signal of the conditional node corresponding to the target inter-network segment function, without obtaining the state signal corresponding to the controlled node corresponding to the target inter-network segment function. If the status signals of the participating nodes required by the target cross-network segment function do not meet the activation conditions corresponding to the target cross-network segment function, the target cross-network segment function will not be activated.

In some embodiments, the function configuration information includes the controlled node and the control instruction of the controlled node that realize the cross-network segment function; as shown in FIG. 4, after step 330, the method further includes:

In step 410, the control instruction of the corresponding controlled node is acquired according to the function configuration information.

For example, the target cross-network segment function is to turn off the lights in the car after the vehicle is powered off to OFF gear, wherein the controlled node is the node that controls the lights in the car, and the control command is an instruction to control the lights in the car to turn off. The control command can be sent by the CAN gateway.

Step 420, sending a control instruction to the controlled node corresponding to the target cross-network segment function.

The control instruction can be sent by the CAN gateway to the corresponding controlled node, and the controlled node executes the control instruction after receiving the control instruction, so as to realize the target cross-network segment function.

In some embodiments, as shown in FIG. 5, after step 130, the method further includes:

Step 510, acquiring activation state indication information of each cross-network segment function in the cross-network segment function set.

The activation status indication information is used to indicate whether the corresponding cross-network segment function is in an activation status.

Step 520, if it is determined according to the activation state indication information that all the cross-network segment functions in the cross-network segment function set are in an inactive state, control the target CAN network segment to sleep.

In this embodiment, as long as all cross-segment functions in the target CAN network segment are in an inactive state, the target CAN network segment is controlled to sleep. When a target CAN network segment enters dormancy, all nodes in the target CAN network segment are in a dormant state, that is, all nodes are in a low power consumption mode. Conversely, if at least one cross-segment function in the cross-segment function set corresponding to the target CAN network segment is activated, the target CAN network segment is controlled to remain in the wake-up state.

In some embodiments, as shown in FIG. 6, after step 510, the method further includes:

Step 610: Determine the activated cross-network segment function in the cross-network segment function set according to the state indication information.

Step 620 , controlling the CAN network segment involved in the activated cross-network segment function to remain awake.

Since the cross-network segment function is activated, it indicates that the cross-network segment function needs to be implemented at this time. As described above, the cross-network segment function needs to be realized by nodes from at least two CAN network segments. In the solution of the present application, a CAN network segment includes multiple nodes. In this embodiment, for the activated cross-network segment function, at least two CAN nodes involved in the activated cross-network segment function are controlled. To keep the network segment in the wake-up state, it is only necessary to control all nodes in the corresponding CAN network segment to keep in the wake-up state with the CAN network segment as the unit, and there is no need to control the node as the unit, that is, multiple The nodes search for the nodes required to participate in the cross-network segment function, and then send wake-up signals to the determined nodes in a targeted manner, thereby improving the efficiency of realizing the cross-network segment function and shortening the waiting time.

In some embodiments, if the CAN network segment involved in the activated inter-network segment function remains awake, the CAN gateway will continue to pay attention to the CAN network segment remaining awake, and repeat step 510 and subsequent steps.

7 is a block diagram of a wake-up control device for a CAN network segment shown according to an embodiment of the present application, which is applied to a CAN gateway in a vehicle, and the CAN gateway communicates with at least two CAN network segments in the vehicle, and each CAN network segment Including at least one node, the wake-up control device 700 of the CAN network segment includes: a cross-network segment function set determination module 710 , a first acquisition module 720 , a target cross-network segment function determination module 730 and a control module 740 . Wherein, the cross-network segment function set determination module 710 is used to determine the cross-network segment function set corresponding to the target CAN network segment according to the target CAN network segment to which the target node belongs; the cross-network segment function set includes at least one cross-network segment function Functional configuration information, the functional configuration information of the cross-network segment function includes the preset state condition of the target node; the first acquisition module 720 is used to obtain the state signal of the target node; the target cross-network segment function determination module 730 is used for cross-network In the segment function set, it is determined that the state signal of the target node satisfies the target cross-network segment function of the preset state condition; the control module 740 is used to control the CAN network segment involved in the target cross-network segment function to remain awake.

In some embodiments, the function configuration information also includes the activation conditions of the corresponding cross-network segment function and the participating nodes required by the target cross-network segment function; the wake-up control device 700 of the CAN network segment also includes: a second acquisition module, using To obtain the status signal of the participating nodes; the judging module is used to judge whether the status signal of the participating node meets the activation condition corresponding to the target cross-network segment function; the target cross-network segment function activation module is used to satisfy the target cross-network segment function corresponding to If the activation condition is set, the target cross-network segment function will be activated.

In some embodiments, the function configuration information also includes the controlled node and the control instruction of the controlled node to realize the cross-network segment function; the wake-up control device 700 of the CAN network segment also includes: a control instruction acquisition module for The control instruction of the corresponding controlled node is obtained from the function configuration information of the network segment function; the sending module is used to send the control instruction to the controlled node corresponding to the target cross-network segment function.

In some embodiments, the wake-up control device 700 of the CAN network segment also includes: an activation status indication information acquisition module, configured to acquire activation status indication information of each cross-network segment function in the cross-network segment function set; a dormancy control module, used If it is determined according to the activation state indication information that all the cross-network segment functions in the cross-network segment function set are in an inactive state, control the target CAN network segment to sleep.

In some embodiments, the wake-up control device 700 of the CAN network segment also includes: a determination module, configured to determine the activated cross-network segment function in the cross-network segment function set according to the activation status indication information; a wake-up control module, for Control the CAN network segment involved in the active cross-network segment function to remain awake.

In some embodiments, the preset state condition of the target node is that the signal value of the state signal of the target node is within a specified signal value range or the level state of the state signal of the target node is a specified level.

In some other embodiments, the target cross-network segment function determination module 730 includes: a reference cross-network segment function determination unit, which is used to determine in the cross-network segment function set that the nodes that require participation include the reference cross-network segment function of the target node; The state condition acquisition unit is used to obtain the required state condition set for the target node from the function configuration information of the reference cross-network segment function; the target cross-network segment function determination unit is used for if the state signal of the target node meets the requirements for the target node If the required state condition is set, the reference cross-network segment function is determined as the target cross-network segment function.

According to an aspect of the embodiment of the present application, a vehicle is provided, the vehicle includes a CAN gateway, the CAN gateway communicates with at least two CAN network segments in the vehicle, each CAN network segment includes at least one node, and the CAN gateway is used to execute The method in any of the above-mentioned embodiments.

According to an aspect of the embodiments of the present application, a computer program product or computer program is provided, the computer program product or computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the method in any of the above embodiments.

According to an aspect of the embodiment of the present application, an electronic device is also provided. As shown in FIG. 8, the electronic device 800 includes a processor 810 and one or more memories 820, and one or more memories 820 are used to store the The processor 810 executes the program instructions, and the processor 810 implements the above-mentioned object recognition method when executing the program instructions.

Further, the processor 810 may include one or more processing cores. The processor 810 runs or executes instructions, programs, code sets or instruction sets stored in the memory 820 , and calls data stored in the memory 820 . Optionally, the processor 810 may use at least one of Digital Signal Processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable LogicArray, PLA). implemented in the form of hardware. The processor 810 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), a modem, and the like. Among them, the CPU mainly handles the operating system, user interface and application programs, etc.; the GPU is used to render and draw the displayed content; the modem is used to handle wireless communication. It can be understood that, the above-mentioned modem may not be integrated into the processor, but may be realized by a communication chip alone.

According to one aspect of the present application, the present application also provides a computer-readable storage medium. The computer-readable medium may be contained in the electronic device described in the above-mentioned embodiments; in this electronic device. The above-mentioned computer-readable storage medium carries computer-readable instructions, and when the computer-readable storage instructions are executed by a processor, the method in any of the above-mentioned embodiments is implemented.

It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any suitable The combination. In this application, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, in which computer-readable program codes are carried. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. . Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

The units described in the embodiments of the present application may be implemented by software or by hardware, and the described units may also be set in a processor. Wherein, the names of these units do not constitute a limitation of the unit itself under certain circumstances.

It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. Actually, according to the embodiment of the present application, the features and functions of two or more modules or units described above may be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided to be embodied by a plurality of modules or units.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Wherein, each block in the flowchart or block diagram may represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or part of the code includes one or more executable instruction. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block in the block diagrams or flowchart illustrations, and combinations of blocks in the block diagrams or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a A combination of dedicated hardware and computer instructions.

Other embodiments of the present application will be readily apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any modification, use or adaptation of the application, these modifications, uses or adaptations follow the general principles of the application and include common knowledge or conventional technical means in the technical field not disclosed in the application .

It should be understood that the present application is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (9)

1. A wake-up control method for a CAN segment, the method comprising:

determining a cross-network segment function set corresponding to a target CAN network segment according to the target CAN network segment to which the target node belongs; the cross-network segment function set comprises function configuration information of at least one cross-network segment function, wherein the function configuration information comprises preset state conditions of a target node, activation conditions of the corresponding cross-network segment function and participation nodes required by the target cross-network segment function;

acquiring a state signal of the target node, wherein the state signal of the target node is used for indicating the state of the target node;

determining a target cross-network segment function of which the state signal of the target node meets the preset state condition of the target node in the cross-network segment function set;

acquiring a status signal of the participating node;

judging whether the status signal of the participating node meets the activation condition corresponding to the target cross-network segment function;

if the activation condition corresponding to the target cross-network-segment function is met, activating the target cross-network-segment function;

the CAN network segment related to the target cross-network segment function of control activation maintains an awake state.

2. The method of claim 1, wherein the function configuration information further comprises a controlled node implementing the cross-segment function and control instructions of the controlled node;

after the target cross-segment function is activated, the method further comprises:

acquiring a control instruction of a corresponding controlled node according to the function configuration information;

and sending the control instruction to the controlled node corresponding to the target cross-network segment function.

3. The method according to claim 1, wherein the method further comprises:

acquiring activation state indication information of each cross-network segment function in the cross-network segment function set;

and if the fact that all the network segment crossing functions in the network segment crossing function set are in the non-activated state is determined according to the activation state indication information, controlling the target CAN network segment to sleep.

4. The method of claim 3, wherein after the acquiring the activation state indication information of each cross-segment function in the cross-segment function set corresponding to the target CAN segment, the method further comprises:

determining a cross-network segment function in an activated state in the cross-network segment function set according to the activation state indication information;

and controlling the CAN network segment related to the cross-network segment function in the activated state to maintain an awake state.

5. The method according to any one of claims 1 to 4, wherein the preset state condition of the target node is that a signal value of the state signal of the target node is within a specified signal value range or that a level state of the state signal of the target node is a specified level.

6. A wake-up control device for a CAN segment, the device comprising:

the cross-network segment function set determining module is used for determining a cross-network segment function set corresponding to a target CAN network segment according to the target CAN network segment to which the target node belongs; the cross-network segment function set comprises function configuration information of at least one cross-network segment function, wherein the function configuration information comprises preset state conditions of a target node, activation conditions of the corresponding cross-network segment function and participation nodes required by the target cross-network segment function;

the first acquisition module is used for acquiring a state signal of the target node, wherein the state signal of the target node is used for indicating the state of the target node; a target cross-network segment function determining module, configured to determine, in the cross-network segment function set, a target cross-network segment function that a status signal of the target node meets a preset status condition of the target node;

the second acquisition module is used for acquiring the state signals of the participating nodes;

the judging module is used for judging whether the state signal of the participating node meets the activation condition corresponding to the target cross-network segment function or not;

the target cross-network segment function activating module is used for activating the target cross-network segment function if the activating condition corresponding to the target cross-network segment function is met;

and the control module is used for controlling the CAN network segment related to the activated target cross-network segment function to keep an awake state.

7. An electronic device, the electronic device comprising:

a processor;

a memory having stored thereon computer readable instructions which, when executed by the processor, implement the method of any of claims 1 to 5.

8. A vehicle, characterized in that the vehicle comprises a CAN gateway which is in communication connection with at least two CAN segments in the vehicle, each CAN segment comprising at least one node, the CAN gateway being adapted to control each CAN segment according to the method according to any one of claims 1 to 5.

9. A computer readable storage medium having stored therein program code which is callable by a processor to perform the method of any one of claims 1 to 5.

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