CN112230572B - Integrated control chip, control method thereof, storage medium, and vehicle - Google Patents
Integrated control chip, control method thereof, storage medium, and vehicle Download PDFInfo
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- CN112230572B CN112230572B CN201910581933.7A CN201910581933A CN112230572B CN 112230572 B CN112230572 B CN 112230572B CN 201910581933 A CN201910581933 A CN 201910581933A CN 112230572 B CN112230572 B CN 112230572B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The disclosure relates to an integrated control chip and a control method thereof, a storage medium, a vehicle, wherein the integrated control chip is integrated with a plurality of control modules which are in one-to-one correspondence with a plurality of vehicle-mounted components and a main control module, and the control modules are used for being called by the main control module to realize a plurality of operations associated with the corresponding vehicle-mounted components; a plurality of node flows which are in one-to-one correspondence with the control modules are formed in the integrated control chip, each node flow is formed by connecting operations executed by the corresponding control module in series, and each operation is respectively used as an operation node in the node flow; the integrated control chip is also provided with at least one data stream which is in one-to-one correspondence with at least one event, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream comprises operation nodes in different node streams; the main control module is used for circularly and sequentially calling each control module, and traversing each operation node in the node flow corresponding to the target control module aiming at the target control module called each time.
Description
Technical Field
The disclosure relates to the technical field of data processing, in particular to an integrated control chip and a control method thereof, a storage medium and a vehicle.
Background
With the development of vehicle technology, the number of vehicle-mounted components which can be selectively configured and installed on a vehicle is increased, and the vehicle-mounted components are configured and installed on different vehicle types or different vehicles of the same vehicle type.
In the related art, a controller is separately configured for each vehicle-mounted component on a vehicle, the controller corresponding to each vehicle-mounted component controls the operation of the vehicle-mounted component, and different vehicle-mounted components communicate through a can (controller Area network) network on the vehicle.
Disclosure of Invention
The disclosure aims to provide an integrated control chip, a control method thereof, a storage medium and a vehicle, which are used for solving the technical problem that the development cost of the vehicle is high in the related art.
In order to achieve the above object, in a first aspect of the embodiments of the present disclosure, an integrated control chip is provided, in which a plurality of control modules corresponding to a plurality of vehicle-mounted components one to one and a main control module are integrated, where the control modules are used to be called by the main control module to implement a plurality of operations associated with the corresponding vehicle-mounted components;
a plurality of node flows which are in one-to-one correspondence with the plurality of control modules are formed in the integrated control chip, each node flow is formed by connecting operations executed by the corresponding control module in series, and each operation is respectively used as an operation node in the node flows;
the integrated control chip is also provided with at least one data stream corresponding to at least one event one by one, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream comprises operation nodes in different node streams;
the main control module is used for circularly and sequentially calling each control module and traversing each operation node in the node flow corresponding to the target control module for each called target control module;
for each traversed operation node, judging whether the operation node is in a data stream, if the operation node is in the data stream and a previous operation node of the operation node in the data stream is in a finished state, executing an operation corresponding to the operation node; and if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an unfinished state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
Optionally, the previous operation node of the head node in the data stream is a tail node of the data stream, and the main control module is further configured to:
after any operation node in the data stream is executed with corresponding operation, the operation node is marked as a completed state, and the previous operation node of the operation node in the data stream is marked as an uncompleted state from the completed state.
Optionally, the main control module is further configured to:
and after the vehicle-mounted component corresponding to the data stream is started, executing the operation corresponding to the head node in the data stream, and marking the head node as a finished state.
Optionally, the main control module is further configured to:
before executing an operation corresponding to any operation node of the data stream, if a resource required by the operation is in an occupied state, registering an instruction for executing the operation into an instruction queue corresponding to the resource;
the main control module is further configured to, for each instruction queue, execute, according to the resource, an instruction at the queue head in the instruction queue after the resource corresponding to the instruction queue is released, and adjust, after the instruction is executed, a next instruction of the instruction to a queue head position.
Optionally, the main control module is further configured to:
for an operation node in the data stream, recording the time length that the operation node waits for the previous operation node in the data stream to be executed, and stopping the data stream when the time length is greater than or equal to a time length threshold value; alternatively, the first and second electrodes may be,
and recording the number of times of traversal of the node flow to which the operation node belongs before the operation corresponding to the operation node is executed after the first node of the data flow is marked as the finished state aiming at the operation node in the data flow, and stopping the data flow if the number of times is greater than or equal to a number threshold.
Optionally, the main control module is further configured to:
after the data flow is terminated, an error prompt message is output.
Optionally, the main control module is configured to:
determining the target control module to be called at this time according to the execution cycles of the control modules and the priorities among the control modules; alternatively, the first and second electrodes may be,
and determining the target control module to be called at present according to the execution cycles of the control modules, the priorities among the control modules and the traversal duration of each control module.
Optionally, the system further includes a memory, configured to store a state flag of each operation node and data information of the operation node, where the state flag is used to represent whether an operation corresponding to the operation node is executed, and the data information is used to represent an executed result of the operation corresponding to the operation node;
the main control module is used for:
when any operation node in the node stream is traversed, if the operation node is in a data stream, reading a storage address of a previous operation node of the operation node in the data stream to obtain a state mark and data information of the previous operation node;
determining whether the previous operation node is in a finished state or not through the state mark;
and if the previous operation node is in the finished state, executing the operation corresponding to the operation node according to the data information.
In a second aspect of the embodiments of the present disclosure, a control method of an integrated control chip is provided, where the method includes:
circularly and sequentially calling each control module in the integrated control chip, traversing each operation node in the node flow corresponding to the target control module aiming at the called target control module each time, wherein the node flow corresponding to each control module is formed by serially connecting operations executed by the control module, and each operation is respectively used as one operation node in the node flow;
for each traversed operation node, judging whether the operation node is in a data stream, wherein one data stream in the integrated control chip corresponds to an event, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream comprises operation nodes in different node streams;
if the operation node is in a data stream and a previous operation node of the operation node in the data stream is in a finished state, executing an operation corresponding to the operation node;
and if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an unfinished state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
Optionally, an operation node before a head node in the data stream is a tail node of the data stream, and the method further includes:
after any operation node in the data stream is executed with corresponding operation, the operation node is marked as a completed state, and the previous operation node of the operation node in the data stream is marked as an uncompleted state from the completed state.
Optionally, the method further comprises:
and after the vehicle-mounted component corresponding to the data stream is started, executing the operation corresponding to the head node in the data stream, and marking the head node as a finished state.
Optionally, the executing the operation corresponding to the operation node includes:
if the resource needed by the operation is in an occupied state, registering an instruction for executing the operation into an instruction queue corresponding to the resource; and are
And after the resource corresponding to the instruction queue is released every time, executing the instruction at the queue head in the instruction queue according to the resource, and after the instruction at the queue head is executed, adjusting the next instruction at the queue head in the instruction queue to the queue head position.
Optionally, the method further comprises:
for an operation node in the data stream, recording the time length that the operation node waits for the previous operation node in the data stream to be executed, and stopping the data stream when the time length is greater than or equal to a time length threshold value; alternatively, the first and second electrodes may be,
and recording the number of times of traversal of the node flow to which the operation node belongs before the operation corresponding to the operation node is executed after the first node of the data flow is marked as the finished state aiming at the operation node in the data flow, and stopping the data flow if the number of times is greater than or equal to a number threshold.
Optionally, the method further comprises:
after the data flow is terminated, an error prompt message is output.
Optionally, the cycling sequentially calls each control module in the integrated control chip, including:
determining the target control module to be called at this time according to the execution cycles of the control modules and the priorities among the control modules; alternatively, the first and second electrodes may be,
and determining the target control module to be called at present according to the execution cycles of the control modules, the priorities among the control modules and the traversal duration of each control module.
Optionally, if the operation node is in a data stream and a previous operation node of the operation node in the data stream is in a completed state, executing an operation corresponding to the operation node, including:
if the operation node is in a data stream, reading a storage address of a previous operation node corresponding to the operation node in the data stream in a memory of the integrated control chip to obtain a state mark and data information of the previous operation node, wherein the memory is used for storing the state mark of each operation node and the data information of the operation node, the state mark is used for representing whether an operation corresponding to the operation node is executed or not, and the data information is used for representing an executed result of the operation corresponding to the operation node;
determining whether the previous operation node is in a finished state or not through the state mark;
and if the previous operation node is in the finished state, executing the operation corresponding to the operation node according to the data information.
In a third aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a main control module in an integrated control chip, implements the steps of the method in any one of the second aspects.
In a fourth aspect of the embodiments of the present disclosure, a vehicle is provided, where the vehicle includes the integrated control chip of any one of the first aspect.
According to the technical scheme, when a certain event needs to be realized by using the vehicle-mounted component, a data stream capable of realizing the event is formed by configuring the operation nodes on the node stream corresponding to the control modules in the integrated control chip, when each control module is called in sequence in a circulating mode, the operation nodes in the data stream traverse along with the operation nodes in the called control module, whether the operation nodes in the data stream are executed or not is judged, and when the operation nodes in the data stream are determined to be executed, the event of the corresponding vehicle-mounted component is realized. Because the cyclic calling of the control module and the traversal of the operation nodes in the control module are sequentially carried out, corresponding events can be realized by configuring operation points in the data stream, a controller is not required to be independently configured for each vehicle-mounted component on the vehicle, and the development cost of the vehicle is reduced.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a block diagram illustrating an integrated control chip in accordance with an exemplary embodiment.
FIG. 2 is a schematic diagram illustrating data flow and node flow in an integrated control chip according to an example embodiment.
FIG. 3 is a block diagram illustrating an integrated control chip in accordance with an exemplary embodiment.
Fig. 4 is a flowchart illustrating a control method of an integrated control chip according to an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
FIG. 1 is a block diagram illustrating an integrated control chip in accordance with an exemplary embodiment. As shown in FIG. 1, a plurality of control modules 121-126 corresponding to a plurality of vehicle-mounted components one to one and a main control module 110 are integrated in the integrated control chip 100, wherein the control modules 121-126 are used for being called by the main control module 110 to implement a plurality of operations associated with the corresponding vehicle-mounted components.
A plurality of node flows corresponding to the plurality of control modules one to one are formed in the integrated control chip 100, each node flow is formed by serially connecting operations executed by the corresponding control module, and each operation is respectively used as an operation node in the node flow;
at least one data stream corresponding to at least one event one to one is further formed in the integrated control chip 100, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream includes operation nodes in different node streams;
the main control module 110 is configured to cyclically and sequentially call each control module, and traverse each operation node in a node flow corresponding to a target control module for each called target control module;
for each traversed operation node, judging whether the operation node is in a data stream, if the operation node is in the data stream and a previous operation node of the operation node in the data stream is in a finished state, executing an operation corresponding to the operation node; and if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an unfinished state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
In an exemplary embodiment, the main control module 110 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.
In an exemplary embodiment, the control modules 121 to 126 may be implemented in the form of hardware, or may be implemented in the form of software functional units. The software functional unit is stored in a storage medium and includes a plurality of functional functions for executing the functional functions when the main control module 110 calls the control module. And the aforementioned storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), and other various media capable of storing program codes.
With respect to the relationship of the control modules to the onboard components, specifically, a single onboard component corresponds to one of the plurality of control modules in the integrated control chip, when some vehicle-mounted components need to be used, the control modules corresponding to the vehicle-mounted components are called through the main control module, and the control module is used for realizing the relevant operation of the vehicle-mounted component corresponding to the control module, and the single operation can be a specific action executed by the vehicle-mounted component, for example, the single operation corresponding to the radar may be one of an operation of transmitting a radar wave for detecting an obstacle, an operation of receiving a radar wave reflected by an obstacle, and an operation of analyzing the received radar wave, and for example, the single operation corresponding to the buzzer may be an operation of receiving an analyzed radar wave signal, an operation of generating an operation command for controlling the buzzer to beep based on the radar wave signal, and an operation of controlling the buzzer to beep based on the operation command.
For example, a single vehicle-mounted component may be any one of a radar, a buzzer, a meter, a vehicle-mounted air conditioner, a vehicle lamp system and a smart key, in one possible embodiment, as shown in fig. 1, the control module 121 is a control module corresponding to a radar, and when it is required to perform some operations using the radar, such as transmitting a radar wave for detecting an obstacle, the main control module 110 calls the control module 121 to control the radar to transmit the radar wave.
For the node flow, for example, as shown in fig. 2, the control module 121 is a control module corresponding to a radar, the operation node 1211 corresponds to an operation of transmitting a radar wave for detecting an obstacle, the operation node 1212 corresponds to an operation of receiving the transmitted radar wave, and the operation node 1213 corresponds to an operation of analyzing the received radar wave, so that the operation node 1211, the operation node 1212, and the operation node 1213 form a node flow corresponding to the control module 121, and the operation nodes 1211 to 1213 are arranged in the node flow in an order of executing the operation node 1211, then executing the operation node 1212, and finally executing the operation node 1213. Similarly, referring to FIG. 2, the node flows formed by the operation nodes 1221-1223 correspond to the control module 122, and the node flows formed by the operation nodes 1231-1233 correspond to the control module 123.
For example, as shown in fig. 2, the control module 121 is a control module corresponding to a radar, the control module 122 is a control module corresponding to a buzzer, the control module 123 is a control module corresponding to a meter, the operation node 1211 of the control module 121 is operated to obtain data information, for example, an obstacle monitored by the radar may be located in one of 5 distance ranges, such as 0 to 0.5m, 0.5m to 1m, 1m to 1.5m, 1.5m to 2m, and 2m to 6m, and the obtained data information is data information indicating that the obstacle is located in one of the 5 distance ranges. The operation node 1222 of the control module 122 is configured to control the buzzer to beep at a frequency corresponding to the distance range based on the data information obtained by the operation node 1211, for example, the buzzer may beep at a frequency of 2kHz, 1kHz, 500Hz, 250Hz, and 125Hz, and 2kHz corresponds to 0-0.5 m, 1kHz corresponds to 0.5 m-1 m, 500Hz corresponds to 1 m-1.5 m, 250Hz corresponds to 1.5 m-2 m, and 125Hz corresponds to 2 m-6 m, that is, when the obtained data information indicates that the obstacle is located at 0-0.5 m, the buzzer beeps at a frequency of 2kHz, and the rest is the same. The operation node 1233 of the control module 123 corresponds to an operation of displaying the distance of the obstacle with respect to the vehicle on the meter based on the acquired data information.
Referring to the above description of the operation corresponding to the operation node, the event is completed by a data stream, and the data stream is formed by connecting a plurality of operation nodes in series, and each data stream includes operation nodes in different node streams. Specifically, it may be implemented by configuring a plurality of operation nodes in a sequence, and forming a data stream by configuring a plurality of operation nodes in one-to-one correspondence with the plurality of operation nodes, for completing a specific event, for example, for monitoring an obstacle distance by radar, controlling a buzzer to beep according to information about the distance, and displaying information about the distance on a meter, by configuring the operation nodes 1211, 1222, 1233, and forming a data stream in series in this sequence.
In one possible embodiment, the main control module 110 first calls the control module 121 to perform an operation corresponding to the operation node 1211, the data information obtained by the radar indicates that the obstacle is located in the range of 0.5m to 1m, then the main control module 110 calls the control module 122 to perform an operation corresponding to the operation node 1222, the buzzer is controlled to buzz at the frequency of 1kHz, and finally the main control module 110 calls the control module 123 to perform an operation corresponding to the operation node 1233, and the distance of the obstacle from the vehicle is displayed on the meter in the range of 0.5m to 1 m. Of course, the data information acquired by the radar may also include the direction of the obstacle relative to the vehicle, for example, the left front direction, and thus a buzzer located at the left front direction on the vehicle may be controlled to beep, and the obstacle located at the left front direction on the vehicle may be displayed on the meter.
Specifically, the master control module sequentially calls the control modules according to a certain sequence, and the calling process is performed in a loop, and when the vehicle is started, the loop starts. For the called control module, namely the target control module, traversing each operation node in the node flow corresponding to the control module according to the series sequence of the operation nodes in the node flow corresponding to the control module.
Following the above example, for the control modules 121 to 126 in fig. 1, the control modules 121, 122, 123, 124, 125, and 126 may be sequentially called in the order of the control module 121, the control module 122, 123, 124, 125, and 126, when the control module 121 is called, as shown in fig. 2, each operation node is sequentially traversed in the order of the operation node 1211, the operation node 1212, and the operation node 1213, and when the control module 122 is called, each operation node is sequentially traversed in the order of the operation node 1221, the operation node 1222, and the operation node 1223.
For example, as shown in fig. 2, for the operation nodes 1221 to 1223 in the control module 122, when traversing to the operation node 1221, since the operation node 1221 is not located in any data stream, the operation node 1221 is not executed, and the operation node 1222 is moved to the traversal operation node 1222, since the operation node 1222 is located in the data stream formed by the operation node 1211, the operation node 1222 and the operation node 1233, it may be detected whether the operation node 1211, which is a previous operation node of the operation node 1222 in the data stream, is in a complete state, if the operation node 1211 is in the complete state, the operation node 1222 is executed, and if the operation node 1211 is in the incomplete state, the operation node 1222 is not executed. It should be noted that, when traversing to an operation node, no matter whether the operation corresponding to the operation node is executed, after traversing the operation node, the next operation node in the node flow where the operation node is located is traversed. In addition, if the operation node is located in the data stream and the operation node is the first node in the data stream, the operation corresponding to the operation node is directly executed without detecting whether the previous operation node in the data stream is in the completed state.
According to the technical scheme, when a certain event needs to be realized by using the vehicle-mounted component, a data stream capable of realizing the event is formed by configuring the operation nodes on the node stream corresponding to the control modules in the integrated control chip, when each control module is called in sequence in a circulating mode, the operation nodes in the data stream traverse along with the operation nodes in the called control module, whether the operation nodes in the data stream are executed or not is judged, and when the operation nodes in the data stream are determined to be executed, the event of the corresponding vehicle-mounted component is realized. Because the cyclic calling of the control module and the traversal of the operation nodes in the control module are sequentially carried out, corresponding events can be realized by configuring operation points in the data stream, a controller is not required to be independently configured for each vehicle-mounted component on the vehicle, and the development cost of the vehicle is reduced.
In addition, since it is not necessary to individually configure a controller for each vehicle-mounted component, the occupied space in the vehicle is reduced, so that the restriction of the space design in the vehicle is reduced. The control modules communicate through a private network in the integrated control chip without depending on a CAN network, so that the signal-to-noise ratio and the speed of information interaction among the control modules are improved. Because the design of the event mainly depends on the configuration of the operation nodes in the control module to form the corresponding data stream, when the event of the vehicle is changed or increased or decreased, the corresponding operation nodes are mainly configured, the transformation of a hardware part is reduced, and the change or increase or decrease of the event is easier to realize.
Optionally, the main control module is configured to:
determining the target control module to be called at this time according to the execution cycles of the control modules and the priorities among the control modules; alternatively, the first and second electrodes may be,
and determining the target control module to be called at present according to the execution cycles of the control modules, the priorities among the control modules and the traversal duration of each control module.
In this disclosure, the execution period of the control module may be embodied by a duration between two adjacent called times of the control module, for example, the execution period of one control module is 5ms, which means that the maximum duration allowed between two successively adjacent called times of the control module is 5ms, that is, within the duration of 5ms, the control module needs to be called once. The execution time of the control module is the time taken for all the operation nodes in the node flow corresponding to the control module to be traversed.
In one possible embodiment, if there is a control module that has to be called at the current time and the execution does not result in the time duration between two actual adjacent called times of the control module exceeding the execution period, the control module that has to be called is called, for example, for a control module with an execution period of 3ms and an execution time duration of 1ms, if the control module is called at the beginning of 1ms and the control module is not called at the 2 nd ms and the 3 rd ms, the control module has to be called at the beginning of 4ms, and if the control module is not called at the beginning of 4ms, for example, the control module is called until the beginning of 5ms, the time duration of two adjacent called times of the control module is actually 4ms and exceeds the execution time duration of 3 ms.
If a plurality of control modules which need to be called appear at the same time, determining the control modules which need to be called at this time according to the priorities of the control modules. For example, for 2 control modules with execution cycles of 2ms and 3ms respectively and execution duration of 1ms, the priority of the control module with execution cycle of 2ms is higher than that of the control module with execution cycle of 3ms, at the beginning of 1ms, the control module with the execution period of 2ms is called first according to the priority, other control modules with the execution duration of 1ms are called at the beginning of 2ms, then at the beginning of 3ms, 2 control modules with the execution periods of 2ms and 3ms respectively need to be called, at this time, the control module with the execution period of 2ms is called according to the priority, for the control module with the execution period of 3ms, after the control module with the execution period of 2ms is called, the calling is carried out immediately, or the calling of the control module with the execution period of 3ms at this time can be skipped, and the control module with the execution period of 3ms can be called again in the next period.
And if the control module which needs to be called does not exist, determining the control module which needs to be called in the corresponding called control module according to the priority. The callable control module may be a control module that meets a preset condition, for example, the preset condition may be a control module remaining after excluding the control module that was called for the previous N times among all the control modules, N is a positive integer, and N may be 1 or 2, for example. The preset condition may also be a control module corresponding to a node flow where each operation node in a data flow corresponding to a currently executed event is located.
The execution period may also be embodied by a maximum time length allowed between the time when the last call of the same control module is ended and the time when the next call of the same control module is just started, in this case, the execution time length of the control module may be disregarded with reference to the above example. For example, for a control module with an execution period of 3ms, if it is called at the end of 1ms and the control module is not called at the end of 2ms to 4ms, then the control module must be called at the beginning of 5 ms.
How to determine the control module to be called this time according to the execution period and the priority, or how to determine the control module to be called this time according to the execution period, the priority and the execution duration, the disclosure is not particularly limited, and a rule for calling the control module may be formulated according to a specific situation.
By setting the execution period, the interval duration of two adjacent calls of the same control module is ensured to be within a controllable range under most conditions, and the control module is prevented from being not called for a too long time to influence the execution of the event corresponding to the data stream where the operation node corresponding to the control module is located.
For each traversed operation node, judging whether the operation node is in a data stream, if the operation node is in the data stream and a previous operation node of the operation node in the data stream is in a finished state, executing an operation corresponding to the operation node; and if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an unfinished state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
Optionally, the previous operation node of the head node in the data stream is a tail node of the data stream, and the main control module is further configured to:
after any operation node in the data stream is executed with corresponding operation, the operation node is marked as a completed state, and the previous operation node of the operation node in the data stream is marked as an uncompleted state from the completed state.
For example, if a flag bit is set for each operation node, the flag bit indicates that the corresponding operation node is in an unfinished state by a number 0, and indicates that the corresponding operation node is in a finished state by a number 1, then for the data stream formed by the operation nodes 1211, 1222, 1233, the flag bit of each operation node is 0 in the initial state. After the operation corresponding to the operation node 1211 is executed, the flag bit of the operation node 1211 is modified to be 1, and the flag bits of the operation node 1222 and the operation node 1233 are still 0, and similarly, after the operation corresponding to the operation node 1222 is executed, the flag bit of the operation node 1222 is 1, the flag bits of the operation node 1211 and the operation node 1233 are 0, and after the operation corresponding to the operation node 1233 is executed, the flag bit of the operation node 1233 is 1, the flag bit of the operation node 1211 is 0, and the flag bit of the operation node 1222 is 0. The previous operation node of the first operation node 1211 in the data stream is the last operation node 1233 of the data stream, each operation node in the data stream can be circularly traversed according to the preset sequence, so that the operation node 1211 can be continuously executed after the operation corresponding to the operation node 1233 is executed, the flag bit of the operation node 1233 is modified to 0 after the operation node 1211 is executed, the flag bit of the operation node 1211 is modified to 1, the flag bit of the operation node 1222 is not changed to 0, and the above process is continuously repeated.
The operation node can judge whether to execute according to the state of the mark of the previous operation node in the data stream where the operation node is positioned, and only the state of one operation node needs to be read, but the states of all the operation nodes do not need to be read, so that the operation amount is reduced, and the traversal speed of the operation nodes in the data stream is accelerated.
Optionally, the main control module is further configured to:
and after the vehicle-mounted component corresponding to the data stream is started, executing the operation corresponding to the head node in the data stream, and marking the head node as a finished state.
The data stream may be configured in the integrated control chip before the vehicle leaves the factory, the vehicle-mounted component corresponding to the data stream is started, the vehicle-mounted component corresponding to a node stream where any operation node of the data stream is located may be started, after the vehicle-mounted component corresponding to the data stream is started, the data stream is added to a thread in which the integrated control chip operates, an operation corresponding to a first node in the data stream is executed, the first node is marked as a completed state with reference to the above description, traversal for each operation node in the data stream is activated, and after the vehicle-mounted component is closed, the data stream is removed from the thread.
After the vehicle-mounted component corresponding to the data stream is started, the vehicle-mounted component indicates that an event corresponding to the data stream needs to be realized, further executes an operation corresponding to a first node in the data stream, marks the first node as a finished state, and activates traversal of each operation node in the data stream, so that the event corresponding to the data stream can be activated and executed when needing to be realized, and the traversal of each operation node in the data stream is activated when the corresponding event needs to be realized, thereby avoiding the situation that the data stream is frequently activated and occupies more resources when the corresponding event does not need to be realized.
Optionally, the main control module is further configured to:
before executing an operation corresponding to any operation node of the data stream, if a resource required by the operation is in an occupied state, registering an instruction for executing the operation into an instruction queue corresponding to the resource;
the main control module is further configured to, for each instruction queue, execute, according to the resource, an instruction at the queue head in the instruction queue after the resource corresponding to the instruction queue is released, and adjust, after the instruction is executed, a next instruction of the instruction to a queue head position.
The resource required by the operation may be a common resource located outside the integrated control chip, for example, a CAN network communication resource, for example, an operation corresponding to an operation node is to acquire the illumination intensity information sent by the illumination sensor through the CAN network, and if the CAN network is occupied by another operation before the operation is performed, for example, an operation corresponding to another operation node is acquiring the rainfall information sent by the rainfall sensor through the CAN network, an instruction corresponding to the illumination intensity information acquired by the illumination sensor through the CAN network is registered in an instruction queue of the resource, and the instruction queue may be located in a register. Meanwhile, if other operations needing to use the CAN network exist, according to the sequence of the called control modules corresponding to the operation nodes corresponding to the operations, the instructions corresponding to the operations are sequentially registered in the instruction queues corresponding to the communication resources of the CAN network.
After the CAN network communication resource is released, for example, after the operating node finishes acquiring the rainfall information, the instruction at the head of the queue in the instruction queue, that is, the instruction stored in the instruction queue first before, is executed, after the instruction is executed, the next instruction of the instruction is adjusted to the position of the head of the queue to execute the next instruction, and then the process is repeated to execute all the instructions in the instruction queue. It should be noted that the process of registering the instruction and the process of executing the instruction at the head of the queue of the instruction queue may be performed synchronously and dynamically.
If the resources required by the operation corresponding to the operation nodes in the data stream are in an occupied state, the operation cannot be realized, the instruction for executing the operation is registered in the instruction queue, and after the required resources are released, the instruction of the queue head of the instruction queue is continuously called, so that the instruction is executed after the required resources are released, and further, the realization of the events corresponding to the data stream is ensured. The instruction queue is adopted to realize the first-in first-out of the instructions, and the instructions can be executed according to the register sequence.
Of course, it can be ensured that each instruction can be executed within the allowed time by limiting the number of instructions in the instruction queue, for example, the allowed maximum waiting time of an instruction is 300ms, and the execution time of each instruction is 6ms, then the maximum number of instructions that can be registered in the instruction queue is 50, and when the instruction queue is full, it can be ensured that the waiting time of the instruction is less than the allowed maximum waiting time thereof by increasing the execution speed of the instruction.
Optionally, the main control module is further configured to:
for an operation node in the data stream, recording the time length that the operation node waits for the previous operation node in the data stream to be executed, and stopping the data stream when the time length is greater than or equal to a time length threshold value; alternatively, the first and second electrodes may be,
and recording the number of times of traversal of the node flow to which the operation node belongs before the operation corresponding to the operation node is executed after the first node of the data flow is marked as the finished state aiming at the operation node in the data flow, and stopping the data flow if the number of times is greater than or equal to a number threshold.
Following the above example, as shown in fig. 2, for an operation node 1233 in a data stream composed of the operation node 1211, the operation node 1222, and the operation node 1233, a time duration of execution of the operation node 1222 is recorded, for example, when the above flag bit of the operation node 1211 is detected to be 1, which indicates that the operation node 1211 is executed completely, an operation corresponding to the operation node 1222 starts to be executed, at this time, timing is started, if the time duration of the timing exceeds a time duration threshold, it is indicated that an exception may occur in implementation of an event corresponding to the data stream, and the data stream is further terminated, it is avoided that, when an exception condition occurs, the operation node in the data stream is in a waiting state for a long time, so that the event corresponding to the data stream cannot be implemented for a long time, and a next round of traversal for each operation node in the data stream can be started after the data stream is terminated.
On the other hand, for the operation node 1233, after the operation node 1211, which is the first node in the data stream where the operation node 1233 is located, is marked as a completed state, the number of times the node stream where the operation node 1233 is located is traversed is recorded, and when the number of times the node stream is traversed is smaller than the threshold number of times, if the operation corresponding to the operation node 1233 is executed, it indicates that the execution state of the operation node 1233 is good, the number of times the operation node is set to zero, so that when the operation node in the data stream is traversed next time, the number of times the node stream where the operation node 1233 is located is traversed is recorded. If the number of times that the node flow to which the operation node 1233 belongs is traversed reaches the threshold number of times, the operation corresponding to the operation node 1233 is still not executed, which indicates that an exception may occur, and then the data flow is terminated, and the next round of traversal for each operation node in the data flow may be started.
Of course, after the data flow is stopped, error prompt information can be output under the control of the main control module, and then workers are prompted to overhaul the vehicle.
Optionally, as shown in fig. 3, the integrated control chip 100 further includes a memory 130, configured to store a status flag of each operation node, where the status flag is used to represent whether an operation corresponding to the operation node is executed and data information of the operation node, where the data information is used to represent an executed result of the operation corresponding to the operation node.
The Memory 130 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, and flash Memory.
The status flag stored in the memory 130 may include the flag information indicating whether the operation node is in a completed state or an uncompleted state, or may include flag information indicating whether the operation node is traversed while traversing the operation node in the node stream. The data information may be information acquired after the operation node is executed, such as distance information of an obstacle acquired by the operation node 1211 through the node in the above example. In addition, configuration information of the data stream, for example, information of the data stream including the operation node 1211, the operation node 1222, and the operation node 1233 may also be stored in the memory.
The main control module is used for:
when any operation node in the node stream is traversed, if the operation node is in a data stream, reading a storage address of a previous operation node of the operation node in the data stream to obtain a state mark and data information of the previous operation node;
determining whether the previous operation node is in a finished state or not through the state mark;
and if the previous operation node is in the finished state, executing the operation corresponding to the operation node according to the data information.
Following the above example, as shown in fig. 2, the storage address corresponding to the operation node 1211 is a, for the operation node 1222 in the data stream composed of the operation node 1211, the operation node 1222, and the operation node 1233, the storage address of the operation node 1211, which is the previous operation node of the operation node 1222, is read to be a, and then the status flag of the operation node 1211 stored in the storage area corresponding to the storage address a and the data information are read, for example, the status flag is number 1 to indicate that the operation node is in the completed state, and when the status flag is read to be 1, it is determined that the operation node 1211 is in the completed state, and the operation node 1222 performs the corresponding operation according to the data information. The specific process of the operation node 1222 executing the corresponding operation according to the data information can be seen in the above example.
The state mark and the data information of the previous node of the operation node can be accurately positioned by reading the storage address, and the state mark and the data information which are read wrongly are avoided.
Fig. 4 is a flowchart illustrating a control method of an integrated control chip according to an exemplary embodiment, as shown in fig. 4, the method including:
s11, circularly and sequentially calling each control module in the integrated control chip, and traversing each operation node in the node flow corresponding to the target control module for each called target control module;
the node flow corresponding to each control module is formed by serially connecting operations executed by the control module, and each operation is respectively used as an operation node in the node flow.
S12, for each traversed operation node, judging whether the operation node is in the data stream;
the integrated control chip comprises a plurality of operation nodes, wherein one data stream in the integrated control chip corresponds to one event, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream comprises operation nodes in different node streams.
S13, if the operation node is in the data stream and the previous operation node of the operation node in the data stream is in the completed state, executing the operation corresponding to the operation node.
S14, if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an incomplete state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
According to the technical scheme, when a certain event needs to be realized by using the vehicle-mounted component, a data stream capable of realizing the event is formed by configuring the operation nodes on the node stream corresponding to the control modules in the integrated control chip, when each control module is called in sequence in a circulating mode, the operation nodes in the data stream traverse along with the operation nodes in the called control module, whether the operation nodes in the data stream are executed or not is judged, and when the operation nodes in the data stream are determined to be executed, the event of the corresponding vehicle-mounted component is realized. Because the cyclic calling of the control module and the traversal of the operation nodes in the control module are sequentially carried out, corresponding events can be realized by configuring operation points in the data stream, a controller is not required to be independently configured for each vehicle-mounted component on the vehicle, and the development cost of the vehicle is reduced.
Optionally, in this disclosure, a previous operation node of a head node in a data stream is a tail node of the data stream, and the control method of the integrated control chip further includes:
after any operation node in the data stream is executed with corresponding operation, the operation node is marked as a completed state, and the previous operation node of the operation node in the data stream is marked as an uncompleted state from the completed state.
Optionally, in this disclosure, the control method of the integrated control chip further includes:
and after the vehicle-mounted component corresponding to the data stream is started, executing the operation corresponding to the head node in the data stream, and marking the head node as a finished state.
Optionally, in this disclosure, executing an operation corresponding to the operation node includes:
if the resource needed by the operation is in an occupied state, registering an instruction for executing the operation into an instruction queue corresponding to the resource; and are
And after the resource corresponding to the instruction queue is released every time, executing the instruction at the queue head in the instruction queue according to the resource, and after the instruction at the queue head is executed, adjusting the next instruction at the queue head in the instruction queue to the queue head position.
Optionally, in this disclosure, the control method of the integrated control chip further includes:
for an operation node in the data stream, recording the time length that the operation node waits for the previous operation node in the data stream to be executed, and stopping the data stream when the time length is greater than or equal to a time length threshold value; alternatively, the first and second electrodes may be,
and recording the number of times of traversal of the node flow to which the operation node belongs before the operation corresponding to the operation node is executed after the first node of the data flow is marked as the finished state aiming at the operation node in the data flow, and stopping the data flow if the number of times is greater than or equal to a number threshold.
Optionally, in this disclosure, the control method of the integrated control chip further includes:
after the data flow is terminated, an error prompt message is output.
Optionally, in this disclosure, the cycle sequentially calls each control module in the integrated control chip, including:
determining the target control module to be called at this time according to the execution cycles of the control modules and the priorities among the control modules; alternatively, the first and second electrodes may be,
and determining the target control module to be called at present according to the execution cycles of the control modules, the priorities among the control modules and the traversal duration of each control module.
Optionally, in this disclosure, if the operation node is in a data stream and a previous operation node of the operation node in the data stream is in a completed state, executing an operation corresponding to the operation node, including:
if the operation node is in a data stream, reading a storage address of a previous operation node corresponding to the operation node in the data stream in a memory of the integrated control chip to obtain a state mark and data information of the previous operation node, wherein the memory is used for storing the state mark of each operation node and the data information of the operation node, the state mark is used for representing whether an operation corresponding to the operation node is executed or not, and the data information is used for representing an executed result of the operation corresponding to the operation node;
determining whether the previous operation node is in a finished state or not through the state mark;
and if the previous operation node is in the finished state, executing the operation corresponding to the operation node according to the data information.
With regard to the control method of the integrated control chip in the above embodiments, the specific manner in which each step is executed has been described in detail in the embodiments related to the integrated control chip, and will not be elaborated here.
In another aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a main control module in an integrated control chip, implements the steps of the control method of any one of the integrated control chips.
In another aspect of the embodiments of the present disclosure, a vehicle is further provided, where the vehicle includes any one of the integrated control chips described above.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (18)
1. An integrated control chip is characterized in that a plurality of control modules corresponding to a plurality of vehicle-mounted components one to one and a main control module are integrated in the integrated control chip, wherein the control modules are used for being called by the main control module to realize a plurality of operations associated with the corresponding vehicle-mounted components;
a plurality of node flows which are in one-to-one correspondence with the plurality of control modules are formed in the integrated control chip, each node flow is formed by connecting operations executed by the corresponding control module in series, and each operation is respectively used as an operation node in the node flows;
the integrated control chip is also provided with at least one data stream corresponding to at least one event one by one, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream comprises operation nodes in different node streams;
the main control module is used for circularly and sequentially calling each control module and traversing each operation node in the node flow corresponding to the target control module for each called target control module;
for each traversed operation node, judging whether the operation node is in a data stream, if the operation node is in the data stream and a previous operation node of the operation node in the data stream is in a finished state, executing an operation corresponding to the operation node; and if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an unfinished state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
2. The integrated control chip according to claim 1, wherein a previous operation node of a head node in a data flow is a tail node of the data flow, and the main control module is further configured to:
after any operation node in the data stream is executed with corresponding operation, the operation node is marked as a completed state, and the previous operation node of the operation node in the data stream is marked as an uncompleted state from the completed state.
3. The integrated control chip of claim 1, wherein the master control module is further configured to:
and after the vehicle-mounted component corresponding to the data stream is started, executing the operation corresponding to the head node in the data stream, and marking the head node as a finished state.
4. The integrated control chip according to any one of claims 1 to 3, wherein the main control module is further configured to:
before executing an operation corresponding to any operation node of the data stream, if a resource required by the operation is in an occupied state, registering an instruction for executing the operation into an instruction queue corresponding to the resource;
the main control module is further configured to, for each instruction queue, execute, according to the resource, an instruction at the queue head in the instruction queue after the resource corresponding to the instruction queue is released, and adjust, after the instruction is executed, a next instruction of the instruction to a queue head position.
5. The integrated control chip according to any one of claims 1 to 3, wherein the main control module is further configured to:
for an operation node in the data stream, recording the time length that the operation node waits for the previous operation node in the data stream to be executed, and stopping the data stream when the time length is greater than or equal to a time length threshold value; alternatively, the first and second electrodes may be,
and recording the number of times of traversal of the node flow to which the operation node belongs before the operation corresponding to the operation node is executed after the first node of the data flow is marked as the finished state aiming at the operation node in the data flow, and stopping the data flow if the number of times is greater than or equal to a number threshold.
6. The integrated control chip of claim 5, wherein the master control module is further configured to:
after the data flow is terminated, an error prompt message is output.
7. The integrated control chip according to any one of claims 1 to 3, wherein the main control module is configured to:
determining the target control module to be called at this time according to the execution cycles of the control modules and the priorities among the control modules; alternatively, the first and second electrodes may be,
and determining the target control module to be called at present according to the execution cycles of the control modules, the priorities among the control modules and the traversal duration of each control module.
8. The integrated control chip according to any one of claims 1 to 3, further comprising a memory for storing a status flag of each operation node and data information of the operation node, wherein the status flag is used for indicating whether an operation corresponding to the operation node is executed or not, and the data information is used for indicating an executed result of the operation corresponding to the operation node;
the main control module is used for:
when any operation node in the node stream is traversed, if the operation node is in a data stream, reading a storage address of a previous operation node of the operation node in the data stream to obtain a state mark and data information of the previous operation node;
determining whether the previous operation node is in a finished state or not through the state mark;
and if the previous operation node is in the finished state, executing the operation corresponding to the operation node according to the data information.
9. A control method of an integrated control chip is characterized by comprising the following steps:
circularly and sequentially calling each control module in the integrated control chip, traversing each operation node in the node flow corresponding to the target control module aiming at the called target control module each time, wherein the node flow corresponding to each control module is formed by serially connecting operations executed by the control module, and each operation is respectively used as one operation node in the node flow;
for each traversed operation node, judging whether the operation node is in a data stream, wherein one data stream in the integrated control chip corresponds to an event, each data stream is formed by connecting a plurality of operation nodes in series, and each data stream comprises operation nodes in different node streams;
if the operation node is in a data stream and a previous operation node of the operation node in the data stream is in a finished state, executing an operation corresponding to the operation node;
and if the operation node is not in the data stream, or the operation node is in the data stream and the previous operation node of the operation node in the data stream is in an unfinished state, traversing the next operation node of the operation node in the node stream corresponding to the target control module.
10. The method of claim 9, wherein the operational node preceding the head node in the data stream is the tail node of the data stream, and wherein the method further comprises:
after any operation node in the data stream is executed with corresponding operation, the operation node is marked as a completed state, and the previous operation node of the operation node in the data stream is marked as an uncompleted state from the completed state.
11. The method of claim 9, further comprising:
and after the vehicle-mounted component corresponding to the data stream is started, executing the operation corresponding to the head node in the data stream, and marking the head node as a finished state.
12. The method according to any one of claims 9 to 11, wherein the performing the operation corresponding to the operation node comprises:
if the resource needed by the operation is in an occupied state, registering an instruction for executing the operation into an instruction queue corresponding to the resource; and are
And after the resource corresponding to the instruction queue is released every time, executing the instruction at the queue head in the instruction queue according to the resource, and after the instruction at the queue head is executed, adjusting the next instruction at the queue head in the instruction queue to the queue head position.
13. The method according to any one of claims 9 to 11, further comprising:
for an operation node in the data stream, recording the time length that the operation node waits for the previous operation node in the data stream to be executed, and stopping the data stream when the time length is greater than or equal to a time length threshold value; alternatively, the first and second electrodes may be,
and recording the number of times of traversal of the node flow to which the operation node belongs before the operation corresponding to the operation node is executed after the first node of the data flow is marked as the finished state aiming at the operation node in the data flow, and stopping the data flow if the number of times is greater than or equal to a number threshold.
14. The method of claim 13, further comprising:
after the data flow is terminated, an error prompt message is output.
15. The method of any of claims 9 to 11, wherein the cycling calls each control module in the integrated control chip in turn, comprising:
determining the target control module to be called at this time according to the execution cycles of the control modules and the priorities among the control modules; alternatively, the first and second electrodes may be,
and determining the target control module to be called at present according to the execution cycles of the control modules, the priorities among the control modules and the traversal duration of each control module.
16. The method according to any of claims 9 to 11, wherein if the operation node is in a data stream and a previous operation node of the operation node in the data stream is in a completed state, performing the operation corresponding to the operation node comprises:
if the operation node is in a data stream, reading a storage address of a previous operation node corresponding to the operation node in the data stream in a memory of the integrated control chip to obtain a state mark and data information of the previous operation node, wherein the memory is used for storing the state mark of each operation node and the data information of the operation node, the state mark is used for representing whether an operation corresponding to the operation node is executed or not, and the data information is used for representing an executed result of the operation corresponding to the operation node;
determining whether the previous operation node is in a finished state or not through the state mark;
and if the previous operation node is in the finished state, executing the operation corresponding to the operation node according to the data information.
17. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a master control module in an integrated control chip, implements the steps of the method of any one of claims 9 to 16.
18. A vehicle characterized in that it comprises an integrated control chip according to any one of claims 1 to 8.
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