Control method of sensing system, sensing system and automobile

Abstract

The invention discloses a control method of a sensing system, the sensing system and an automobile. The sensing system comprises a transmitting circuit, a receiving circuit, a driving circuit, a positioning circuit and an inertia detection circuit. The control method comprises the following steps: (a) acquiring positioning information of a current period according to the positioning circuit, and acquiring acceleration information of the current period according to the inertia detection circuit; (b) acquiring the speed and the acceleration of the current period according to the positioning information, the acceleration information and a preset correction algorithm; (c) according to the speed, the acceleration and a preset prediction algorithm, obtaining a predicted speed and a predicted acceleration of a next period; and (d) in the next period, controlling the driving circuit according to the predicted speed and the predicted acceleration so as to control the power consumption of the transmitting circuit and the receiving circuit, and returning to the step (a). According to the invention, the energy consumption of the sensing system can be effectively reduced, so that the energy consumption of automobiles and other mobile platforms is reduced.

Description

Technical Field

[0001] The present application relates to the field of sensing technology, and in particular to a control method of a sensing system, a sensing system, and a vehicle. Background Art

[0002] Currently, automobiles and other mobile platforms generally use batteries to store energy for various system operations. Sensing systems for mobile safety also require power. However, the energy consumption of sensing systems during operation is significant, significantly impacting the overall energy consumption of automobiles and other mobile platforms, leading to higher energy consumption. Summary of the Invention

[0003] In view of this, the present application provides a control method for a sensing system, a sensing system, and a vehicle, which are used to reduce the energy consumption of the sensing system, thereby reducing the energy consumption of the vehicle and other mobile platforms. The technical solution of the present application is as follows:

[0004] In a first aspect, the present application provides a control method for a sensing system, wherein the sensing system includes a transmitting circuit, a receiving circuit, a driving circuit, a positioning circuit, and an inertia detection circuit; the transmitting circuit and the receiving circuit are used to sense the distance to an object within a target range; the driving circuit is used to power the transmitting circuit and the receiving circuit and control the power consumption of the transmitting circuit and the receiving circuit; the control method includes: (a) obtaining positioning information of a current cycle according to the positioning circuit, and obtaining acceleration information of the current cycle according to the inertia detection circuit; (b) obtaining a speed and acceleration of the current cycle according to the positioning information, the acceleration information, and a preset correction algorithm; (c) obtaining a predicted speed and the predicted acceleration of the next cycle according to the speed, the acceleration, and a preset prediction algorithm; (d) in the next cycle, controlling the driving circuit according to the predicted speed and predicted acceleration to control the power consumption of the transmitting circuit and the receiving circuit, and returning to step (a).

[0005] In one embodiment of the present application, the predicted speed and the predicted acceleration are directly proportional to the power consumption.

[0006] In one embodiment of the present application, the step (b) includes: obtaining an initial velocity based on the positioning information; calibrating the initial velocity based on the acceleration information to obtain the velocity; and performing algorithm simulation based on the acceleration information and historical acceleration to obtain the acceleration.

[0007] In one embodiment of the present application, the (c) step includes: calculating the difference between the acceleration of the current cycle and the acceleration of the previous cycle; when it is determined that the difference is greater than a preset difference, obtaining the predicted acceleration of the next cycle based on the acceleration of the current cycle and the difference; and obtaining the predicted speed of the next cycle based on the predicted acceleration and the speed.

[0008] In one embodiment of the present application, controlling the power consumption of the transmitting circuit and the receiving circuit includes: controlling the power of the transmitting circuit; and / or controlling the number of signal transmissions of the transmitting circuit and the number of signal receptions of the receiving circuit; wherein the power, the number of signal transmissions and the number of signal receptions are directly proportional to the predicted speed and the predicted acceleration.

[0009] In a second aspect, the present application provides a sensing system, comprising a transmitting circuit, a receiving circuit, a driving circuit, a positioning circuit, an inertia detection circuit, and a controller; the transmitting circuit and the receiving circuit are used to sense the distance to an object within a target range; the driving circuit is used to power the transmitting circuit and the receiving circuit and control the power consumption of the transmitting circuit and the receiving circuit; the controller is connected to the receiving circuit, the driving circuit, the positioning circuit, and the inertia detection circuit; and the controller is used to execute the control method.

[0010] In one embodiment of the present application, the sensing system further includes a digital-to-analog conversion circuit, which is connected to the receiving circuit, the driving circuit and the controller; the controller is also used to send control instructions to the receiving circuit and the driving circuit through the digital-to-analog conversion circuit.

[0011] In one embodiment of the present application, the transmitting circuit is a laser transmitting circuit, and the receiving circuit is a laser receiving circuit; controlling the power consumption of the transmitting circuit and the receiving circuit includes: controlling the power, frequency and number of transmissions per second of the laser transmitting circuit, and controlling the frequency and number of receptions per second of the laser transmitting circuit.

[0012] In one embodiment of the present application, the transmitting circuit is an ultrasonic transmitting circuit or an electromagnetic wave transmitting circuit, and the receiving circuit is an ultrasonic receiving circuit or an electromagnetic wave receiving circuit; controlling the power consumption of the transmitting circuit and the receiving circuit includes: controlling the power and the number of transmissions per second of the ultrasonic transmitting circuit or the electromagnetic wave transmitting circuit, and controlling the number of receptions per second of the ultrasonic receiving circuit or the electromagnetic wave receiving circuit.

[0013] In an embodiment of the present application, positioning information is obtained through a positioning circuit and acceleration information is obtained through an inertial detection circuit. The speed and acceleration of the current cycle are obtained based on the positioning information and acceleration information through a correction algorithm. This can improve the accuracy of the speed and acceleration of the current cycle, thereby improving the accuracy of the predicted speed and predicted acceleration of the next cycle. The power consumption of the transmitting circuit and the receiving circuit is then controlled based on the predicted speed and predicted acceleration, which can effectively reduce the energy consumption of the sensing system, and thereby reduce the energy consumption of automobiles and other mobile platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic block diagram of a sensing system provided in an embodiment of the present application.

[0015] Figure 2 This is a flow chart of a control method for a sensing system provided in an embodiment of the present application.

[0016] Figure 3 This is a flow chart of a method for obtaining speed and acceleration provided in an embodiment of the present application.

[0017] Figure 4 This is a flowchart of a method for obtaining predicted speed and predicted acceleration provided in an embodiment of the present application.

[0018] Figure 5 This is a schematic block diagram of a sensing system provided in an embodiment of the present application.

[0019] Figure 6 This is a schematic block diagram of another sensing system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] It should be noted that, in the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0021] It should also be noted that the method disclosed in the embodiments of the present application or the method shown in the flowchart includes one or more steps for implementing the method. Without departing from the scope of the claims, the execution order of multiple steps can be interchanged with each other, and some steps can also be deleted.

[0022] Currently, automobiles and other mobile platforms generally use batteries to store energy for various system operations. Sensing systems for mobile safety also require power. However, the energy consumption of sensing systems during operation is significant, significantly impacting the overall energy consumption of automobiles and other mobile platforms, leading to higher energy consumption.

[0023] The present application provides a control method for a sensing system, a sensing system, and a vehicle, which are used to reduce the energy consumption of the sensing system, thereby reducing the energy consumption of the vehicle and other mobile platforms.

[0024] Please refer to Figure 1 , Figure 1 This is a schematic block diagram of a sensing system provided in an embodiment of the present application. The sensing system 100 includes a transmitting circuit 110 , a receiving circuit 120 , a driving circuit 130 , a positioning circuit 140 , and an inertia detection circuit 150 .

[0025] The transmitting circuit 110 and the receiving circuit 120 are used to sense the distance to an object within a target range. The driving circuit 130 is used to power the transmitting circuit 110 and the receiving circuit 120 and control the power consumption of the transmitting circuit 110 and the receiving circuit 120.

[0026] Next, combine Figure 1 This invention introduces a control method of a sensing system provided by an embodiment of the present invention. Figure 2 , Figure 2 A flow chart of a control method for a sensing system provided in an embodiment of the present application specifically includes the following steps:

[0027] Step S21: obtaining positioning information of the current cycle according to the positioning circuit, and obtaining acceleration information of the current cycle according to the inertia detection circuit.

[0028] In the embodiments of the present application, the sensing system further includes a controller. For example, in an electric vehicle, the controller may be an onboard computer controller, and in an unmanned aerial vehicle, the controller may be a microprocessor, etc., without limitation. The controller is connected to a positioning circuit and an inertia detection circuit, and obtains positioning information of the current cycle through the positioning circuit and acceleration information of the current cycle through the inertia detection circuit.

[0029] The positioning circuit includes GPS (Global Positioning System), etc., which is not limited here.

[0030] Step S22: Obtain the speed and acceleration of the current cycle according to the positioning information, acceleration information and a preset correction algorithm.

[0031] In the embodiment of the present application, after obtaining the positioning information and acceleration information of the current cycle, the controller can correct the positioning information and acceleration information according to a preset correction algorithm, thereby obtaining the corrected speed and acceleration of the current cycle.

[0032] In some embodiments, the preset correction algorithm includes correcting acceleration information using positioning information, or correcting positioning information using acceleration information, etc., which is not limited here.

[0033] Step S23: Obtain the predicted speed and predicted acceleration of the next cycle according to the speed, acceleration and a preset prediction algorithm.

[0034] In the embodiment of the present application, after obtaining the speed and acceleration of the current cycle, the controller will obtain the predicted speed and predicted acceleration of the next cycle according to a preset prediction algorithm.

[0035] In some embodiments, the preset prediction algorithm may be a linear regression algorithm. That is, the controller may use a linear regression algorithm to fit a corresponding speed curve based on the historical speed and the speed of the current cycle, thereby obtaining a predicted speed for the next cycle based on the speed curve. Similarly, the controller may use a linear regression algorithm to fit a corresponding acceleration curve based on the historical acceleration and the acceleration of the current cycle, thereby obtaining a predicted acceleration for the next cycle based on the acceleration curve.

[0036] Step S24: In the next cycle, the driving circuit is controlled according to the predicted speed and the predicted acceleration to control the power consumption of the transmitting circuit and the receiving circuit, and the process returns to step S21.

[0037] In an embodiment of the present application, after obtaining the predicted speed and predicted acceleration, the controller controls the drive circuit according to the predicted speed and predicted acceleration, thereby controlling the power consumption of the transmitting circuit and the receiving circuit. For example, when the predicted speed and predicted acceleration are both greater than the speed and acceleration of the current cycle, it indicates that the electric vehicle is in an accelerating state. In order to improve driving safety, it is necessary to expand the sensing range, and it is necessary to control the drive circuit to increase the power consumption of the transmitting circuit and the receiving circuit. If the predicted speed and acceleration are both smaller than the speed and acceleration of the current cycle, it indicates that the electric vehicle is in a decelerating state. Therefore, the sensing range can be appropriately reduced while ensuring driving safety, and it is necessary to control the drive circuit to reduce the power consumption of the transmitting circuit and the receiving circuit. Similarly, if the difference between the predicted speed and the speed of the current cycle is within a preset range, and the predicted acceleration is small, it indicates that the electric vehicle is in a uniform speed state, and the drive circuit can be controlled to maintain the current power consumption of the transmitting circuit and the receiving circuit.

[0038] It can be understood that in the control method of the present application, positioning information is obtained through the positioning circuit and acceleration information is obtained through the inertial detection circuit. The speed and acceleration of the current cycle are obtained based on the positioning information and acceleration information through the correction algorithm. The accuracy of the speed and acceleration of the current cycle can be improved, thereby improving the accuracy of the predicted speed and predicted acceleration of the next cycle. The power consumption of the transmitting circuit and the receiving circuit is controlled according to the predicted speed and predicted acceleration, which can effectively reduce the energy consumption of the sensing system, and thus reduce the energy consumption of automobiles and other mobile platforms.

[0039] In the embodiments of the present application, the predicted speed and predicted acceleration are directly proportional to power consumption. That is, the greater the predicted speed and predicted acceleration, the greater the power consumption of the transmitting and receiving circuits, and the smaller the predicted speed and predicted acceleration, the lower the power consumption of the transmitting and receiving circuits. In some embodiments, the controller may also store a table of relationships between the predicted speed and predicted acceleration and power consumption. After obtaining the predicted speed and predicted acceleration, the controller may match the table with the corresponding power consumption to quickly determine the corresponding power consumption and thereby control the drive circuit.

[0040] Please refer to Figure 3 , Figure 3 A flow chart of a method for obtaining speed and acceleration provided in an embodiment of the present application, specifically comprising the following steps:

[0041] Step S31: Obtaining initial velocity according to positioning information.

[0042] Step S32: Calibrate the initial velocity according to the acceleration information to obtain the velocity.

[0043] In the embodiment of the present application, after obtaining positioning information, the controller can determine the initial velocity based on the positioning information. For example, the controller can determine the initial velocity based on the distance between the current positioning point and the previous positioning point in the positioning information, as well as the time interval between the two positioning points. After obtaining the initial velocity, the controller can calibrate and correct the initial velocity using the acceleration information to obtain a more accurate velocity for the current cycle.

[0044] Step S33: Perform algorithm simulation based on the acceleration information and historical acceleration to obtain acceleration.

[0045] In an embodiment of the present application, the controller also records the acceleration information of each cycle to generate historical acceleration, and performs algorithm simulation in the current cycle based on the corresponding acceleration information and historical acceleration to obtain an acceleration curve. For example, linear regression can be performed based on the acceleration information and historical acceleration to obtain an acceleration curve, thereby obtaining a more accurate acceleration for the current cycle.

[0046] Please refer to Figure 4 , Figure 4A flowchart of a method for obtaining predicted speed and predicted acceleration provided in an embodiment of the present application specifically includes the following steps:

[0047] Step S41: Calculate the difference between the acceleration of the current cycle and the acceleration of the previous cycle.

[0048] Step S42: When it is determined that the difference is greater than the preset difference, the predicted acceleration of the next cycle is obtained according to the acceleration of the current cycle and the difference.

[0049] Step S43: Obtain the predicted speed of the next cycle based on the predicted acceleration and speed.

[0050] In the embodiment of the present application, when it is determined that the difference is greater than a preset difference, it can be determined that the vehicle is in an accelerating state or a decelerating state. The controller can also obtain a predicted acceleration for the next cycle based on the difference and the acceleration of the current cycle. For example, if the acceleration of the current cycle is greater than the acceleration of the previous cycle, it indicates that the vehicle is in an accelerating state, and the acceleration of the current cycle is added to the difference to obtain the predicted acceleration for the next cycle. If the acceleration of the current cycle is less than the acceleration of the previous cycle, it indicates that the vehicle is in a decelerating state, and the acceleration of the current cycle is subtracted from the difference to obtain the predicted acceleration for the next cycle.

[0051] After obtaining the predicted acceleration, the controller can also obtain the predicted speed of the next cycle based on the speed of the current cycle and the predicted acceleration.

[0052] In some embodiments, controlling the power consumption of the transmitting circuit and the receiving circuit includes controlling the power of the transmitting circuit and / or controlling the number of signal transmissions by the transmitting circuit and the number of signal receptions by the receiving circuit. The power, the number of signal transmissions, and the number of signal receptions are proportional to the predicted speed and the predicted acceleration.

[0053] Please refer to Figure 5 , Figure 5 This is a schematic block diagram of a sensing system provided in an embodiment of the present application. The sensing system 500 includes a transmitting circuit 510 , a receiving circuit 520 , a driving circuit 530 , a positioning circuit 540 , an inertia detection circuit 550 , and a controller 560 .

[0054] In the embodiment of the present application, the transmitting circuit 510 and the receiving circuit 520 are used to sense the distance to an object within a target range. The driving circuit 530 is used to power the transmitting circuit 510 and the receiving circuit 520 and control the power consumption of the transmitting circuit 510 and the receiving circuit 520. The controller 560 is connected to the receiving circuit 520, the driving circuit 530, the positioning circuit 540, and the inertia detection circuit 550.

[0055] The controller 560 is used to execute the control method of the sensing system 500 of any of the above embodiments. It is understood that the beneficial effects achieved by the sensing system 500 of the present embodiment can refer to the beneficial effects of the control method of the sensing system 500 in the above embodiments, which will not be repeated here.

[0056] In some embodiments, as Figure 6 As shown, the sensing system 500 further includes a digital-to-analog conversion circuit 570, which is connected to the receiving circuit 520, the driving circuit 530, and the controller 560. The controller 560 is further configured to issue control instructions to the receiving circuit 520 and the driving circuit 530 via the digital-to-analog conversion circuit 570.

[0057] In some embodiments, the transmitting circuit 510 is a laser transmitting circuit, and the receiving circuit 520 is a laser receiving circuit. Controlling the power consumption of the transmitting circuit 510 and the receiving circuit 520 includes controlling the power, frequency, and number of transmissions per second of the laser transmitting circuit, and controlling the frequency and number of receptions per second of the laser transmitting circuit.

[0058] In some embodiments, the transmitting circuit 510 is an ultrasonic transmitting circuit or an electromagnetic wave transmitting circuit, and the receiving circuit 520 is an ultrasonic receiving circuit or an electromagnetic wave receiving circuit. Controlling the power consumption of the transmitting circuit 510 and the receiving circuit 520 includes controlling the power and the number of transmissions per second of the ultrasonic transmitting circuit or the electromagnetic wave transmitting circuit, and controlling the number of receptions per second of the ultrasonic receiving circuit or the electromagnetic wave receiving circuit.

[0059] An embodiment of the present application also provides a car, comprising the sensing system in any of the above embodiments.

[0060] An embodiment of the present application further provides a computer storage medium, which stores a computer program. When the computer program is executed by a processor, the processor executes the above-mentioned control method of the sensing system.

[0061] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer storage medium or transmitted through the computer storage medium. The computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0062] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When executed, the program can include the processes of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks. The technical features of this embodiment and the implementation scheme can be combined in any manner unless they conflict.

[0063] The embodiments described above are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present application.

Claims

1. A control method for a sensing system, characterized in that: The sensing system includes a transmitting circuit, a receiving circuit, a driving circuit, a positioning circuit and an inertia detection circuit; The transmitting circuit and the receiving circuit are used to sense the distance to an object within a target range; The driving circuit is used to supply power to the transmitting circuit and the receiving circuit, and control the power consumption of the transmitting circuit and the receiving circuit; The control method includes: (a) obtaining positioning information of the current cycle according to the positioning circuit, and obtaining acceleration information of the current cycle according to the inertia detection circuit; (b) obtaining the speed and acceleration of the current cycle based on the positioning information, the acceleration information, and a preset correction algorithm; (c) obtaining a predicted speed and a predicted acceleration for the next cycle based on the speed, the acceleration, and a preset prediction algorithm; (d) In the next cycle, the driving circuit is controlled according to the predicted speed and the predicted acceleration to control the power consumption of the transmitting circuit and the receiving circuit, and the process returns to step (a).

2. The control method according to claim 1, wherein: The predicted speed and the predicted acceleration are directly proportional to the power consumption.

3. The control method according to claim 1, wherein: The step (b) comprises: obtaining an initial velocity according to the positioning information; Calibrate the initial velocity according to the acceleration information to obtain the velocity; An algorithm simulation is performed according to the acceleration information and historical acceleration to obtain the acceleration.

4. The control method according to claim 1, wherein: The step (c) comprises: Calculating the difference between the acceleration of the current cycle and the acceleration of the previous cycle; When it is determined that the difference is greater than a preset difference, obtaining the predicted acceleration of the next cycle according to the acceleration of the current cycle and the difference; The predicted speed of the next cycle is obtained according to the predicted acceleration and the speed.

5. The control method according to claim 1, wherein: The controlling the power consumption of the transmitting circuit and the receiving circuit includes: controlling the power of the transmitting circuit; and / or controlling the number of signal transmissions by the transmitting circuit and the number of signal receptions by the receiving circuit; The power, the number of signal transmissions, and the number of signal receptions are directly proportional to the predicted speed and the predicted acceleration.

6. A sensing system, characterized in that: It includes a transmitting circuit, a receiving circuit, a driving circuit, a positioning circuit, an inertia detection circuit and a controller; The transmitting circuit and the receiving circuit are used to sense the distance to an object within a target range; the driving circuit is used to power the transmitting circuit and the receiving circuit and control the power consumption of the transmitting circuit and the receiving circuit; the controller is connected to the receiving circuit, the driving circuit, the positioning circuit, and the inertia detection circuit; The controller is configured to execute the control method according to any one of claims 1 to 5.

7. The sensing system according to claim 6, wherein: It also includes a digital-to-analog conversion circuit, which is connected to the receiving circuit, the driving circuit and the controller; The controller is further configured to send control instructions to the receiving circuit and the driving circuit via the digital-to-analog conversion circuit.

8. The sensing system according to claim 6, wherein: The transmitting circuit is a laser transmitting circuit, and the receiving circuit is a laser receiving circuit; The controlling the power consumption of the transmitting circuit and the receiving circuit includes: Control the power, frequency and number of transmissions per second of the laser emitting circuit, and control the frequency and number of receptions per second of the laser emitting circuit.

9. The sensing system according to claim 6, wherein: The transmitting circuit is an ultrasonic transmitting circuit or an electromagnetic wave transmitting circuit, and the receiving circuit is an ultrasonic receiving circuit or an electromagnetic wave receiving circuit; The controlling the power consumption of the transmitting circuit and the receiving circuit includes: Control the power and the number of transmissions per second of the ultrasonic transmitting circuit or the electromagnetic wave transmitting circuit, and control the number of receptions per second of the ultrasonic receiving circuit or the electromagnetic wave receiving circuit.

10. An automobile, characterized in that: Comprising a sensing system as claimed in any one of claims 6 to 9.

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