A method for ultra-low standby power consumption at Beidou satellite navigation chip level

Abstract

The present invention provides a method for ultra-low standby power consumption at the Beidou satellite navigation chip level, and relates to the technical field of Beidou satellite navigation chips. The method for ultra-low standby power consumption at the Beidou satellite navigation chip level comprises the following steps: a scanning module in a main processor pre-scans the entire path to be navigated, and analyzes the current status information of the path according to the previous information of the path; a baseband processing module in the main processor receives information, and at the same time, a scanning module intermittently captures real-time path status information, and sends the captured information to the baseband processing module; a positioning module in the main processor receives information, and performs calculation and navigation to form a specific planned path; the main processor controls the scanning module, the baseband processing module and the positioning module to be intermittently closed. After the path planning is completed, the present invention puts the main processor in a sleep mode and wakes up intermittently. After waking up, it does not recalculate, thereby further reducing the computing power consumption of the main processor.

Description

Technical Field

[0001] The present invention relates to the technical field of Beidou satellite navigation chips, and in particular to a method for ultra-low standby power consumption at Beidou satellite navigation chip level. Background Art

[0002] With the miniaturization and even chipization of satellite navigation and positioning equipment, the market for mobile navigation products with personalized mobile information as the core is becoming increasingly broad, and the variety of various embedded electronic products is becoming more and more abundant. Mobile terminal products of mobile communication components will develop rapidly. In mobile terminals, the power consumption of mobile terminals must be considered, so the market demand for low-power navigation chips is very large. The development of independently developed low-power receiver chips is of great significance and market value both for the development of navigation satellite systems and receiver equipment.

[0003] In the prior art, during the operation of the satellite navigation chip, the main processor continuously captures, processes and calculates the received satellite signals, which consumes a large amount of the main processor's computing resources and consumes a lot of power. For navigation on conventional paths, the path planning is similar, so it will inevitably cause a waste of power consumption. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a method for ultra-low standby power consumption at the Beidou satellite navigation chip level, which solves the problem of high computing power consumption of the main processor.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented by the following technical solutions: A method for ultra-low standby power consumption at Beidou satellite navigation chip level, comprising the following steps:

[0008] Step 1: Scan and save:

[0009] The scanning module in the main processor pre-scans the entire path to be navigated, analyzes the current status information of the path based on the previous information of the path, and stores it in a temporary memory;

[0010] Step 2: Compare and correct:

[0011] The baseband processing module in the main processor receives the status information in the temporary memory, and the scanning module intermittently captures the real-time path status information and sends the captured information to the baseband processing module. The baseband processing module compares the two information and corrects them to obtain real-time information;

[0012] By pre-scanning the path, analyzing the current status of the path based on the previous information of the path, and then intermittently capturing the real-time path status information through the scanning module, real-time information is obtained. On the one hand, the timeliness of the path information can be improved, and on the other hand, the computing power consumption of the main processor can be reduced.

[0013] Step 3: Path planning:

[0014] The positioning module in the main processor receives the above real-time information, and performs calculations and navigation to form a specific planned path;

[0015] Step 4: Mode switch:

[0016] The main processor controls the scanning module, the baseband processing module and the positioning module to be shut down intermittently, that is, to switch between the sleep mode and the non-sleep mode;

[0017] After the path planning is completed, the main processor is in sleep mode and wakes up intermittently. After waking up, it does not recalculate, further reducing the computing power consumption of the main processor.

[0018] Preferably, in step 1, the past information of the path includes the time of passing the path, the length of the path, the number of traffic lights and the congestion index.

[0019] Preferably, in step one, by analyzing the past information of the path, specifically, the priority of the intended results of the analysis is: time passing through the path > congestion index > path length > number of traffic lights.

[0020] Preferably, the priority of the intended results of the analysis is: time to pass the path > path length > congestion index > number of traffic lights.

[0021] Preferably, in step 2, after the baseband processing module receives the status information in the temporary memory, the temporary memory is closed.

[0022] Preferably, in step 2, the scanning module performs intermittent capture based on the passing path time, specifically, captures information once every 1 / 10-5 / 1 of the passing path time.

[0023] Preferably, in step three, after the positioning module in the main processor forms a specific planned path, the scanning module, the baseband processing module and the positioning module are turned off.

[0024] Preferably, in step 4, when entering the non-sleep module, step 2 is repeated.

[0025] (III) Beneficial effects

[0026] The present invention provides a method for ultra-low standby power consumption at the Beidou satellite navigation chip level.

[0027] Beneficial effects:

[0028] 1. Pre-scan the path and analyze the current status of the path based on the previous information of the path. Secondly, the real-time path status information is captured intermittently by the scanning module to obtain real-time information. On the one hand, it can improve the timeliness of the path information and on the other hand, reduce the computing power consumption of the main processor.

[0029] 2. After the path planning is completed, the main processor is in sleep mode and wakes up intermittently. After waking up, it will not recalculate, further reducing the computing power consumption of the main processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the method flow of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1 As shown, an embodiment of the present invention provides a method for ultra-low standby power consumption at the Beidou satellite navigation chip level, comprising the following steps:

[0034] Step 1: Scan and save:

[0035] The scanning module in the main processor pre-scans the entire path to be navigated, analyzes the current status information of the path based on the previous information of the path, and stores it in a temporary memory;

[0036] Step 2: Compare and correct:

[0037] The baseband processing module in the main processor receives the status information in the temporary memory, and the scanning module intermittently captures the real-time path status information and sends the captured information to the baseband processing module. The baseband processing module compares the two information and corrects them to obtain real-time information;

[0038] As mentioned above, by pre-scanning the path, the current status information of the path is analyzed based on the previous information of the path, and secondly, the real-time path status information is intermittently captured by the scanning module to obtain real-time information. On the one hand, the timeliness of the path information can be improved, and on the other hand, the computing power consumption of the main processor can be reduced.

[0039] Step 3: Path planning:

[0040] The positioning module in the main processor receives the above real-time information, and performs calculations and navigation to form a specific planned path;

[0041] Step 4: Mode switch:

[0042] The main processor controls the scanning module, the baseband processing module and the positioning module to be shut down intermittently, that is, to switch between the sleep mode and the non-sleep mode.

[0043] As described above, after the path planning is completed, the main processor is in sleep mode and wakes up intermittently. After waking up, it does not recalculate, which further reduces the computing power consumption of the main processor.

[0044] Embodiment 2:

[0045] like Figure 1 As shown, an embodiment of the present invention provides a method for ultra-low standby power consumption at the Beidou satellite navigation chip level, comprising the following steps:

[0046] Step 1: Scan and save:

[0047] The scanning module in the main processor pre-scans the entire path to be navigated, analyzes the current status information of the path based on the previous information of the path, and stores it in a temporary memory;

[0048] The past information of the path includes the time of passing the path, the length of the path, the number of traffic lights and the congestion index. Specifically, by analyzing the past information of the path, the priority of the intended results of the analysis is further: the time of passing the path > congestion index > length of the path > number of traffic lights.

[0049] Step 2: Compare and correct:

[0050] The baseband processing module in the main processor receives the status information in the temporary memory. After the baseband processing module receives the status information in the temporary memory, the temporary memory is closed, and the scanning module intermittently captures the real-time path status information. Specifically, the scanning module intermittently captures the information based on the path passing time. Specifically, the information is captured once every 1 / 10 of the path passing time, and the captured information is sent to the baseband processing module. The baseband processing module compares the two information and corrects them to obtain real-time information.

[0051] As mentioned above, by pre-scanning the path, the current status information of the path is analyzed based on the previous information of the path, and secondly, the real-time path status information is intermittently captured by the scanning module to obtain real-time information. On the one hand, the timeliness of the path information can be improved, and on the other hand, the computing power consumption of the main processor can be reduced.

[0052] Step 3: Path planning:

[0053] The positioning module in the main processor receives the above real-time information, and performs calculation and navigation to form a specific planning path. After the positioning module in the main processor forms the specific planning path, the scanning module, the baseband processing module and the positioning module are turned off;

[0054] Step 4: Mode switch:

[0055] The main processor controls the scanning module, the baseband processing module and the positioning module to be intermittently shut down, that is, to switch between the sleep mode and the non-sleep mode. When entering the non-sleep mode, step 2 is repeated.

[0056] As described above, after the path planning is completed, the main processor is in sleep mode and wakes up intermittently. After waking up, it does not recalculate, which further reduces the computing power consumption of the main processor.

[0057] Embodiment three:

[0058] The difference between this embodiment and the second embodiment is that the priority of the intended results of the analysis is: time to pass the path > length of the path > congestion index > number of traffic lights.

[0059] Embodiment 4:

[0060] The difference between this embodiment and the second embodiment is that information is captured once every 1 / 8 of the passing path time.

[0061] Embodiment five:

[0062] The difference between this embodiment and the second embodiment is that information is captured once every 1 / 5 of the passing path time.

[0063] In summary, the embodiments of the present invention provide a method for ultra-low standby power consumption at the Beidou satellite navigation chip level, which achieves the purpose of improving the timeliness of path information and reducing the computing power consumption of the main processor through the steps of pre-scanning the path, comparing and correcting real-time information, path planning, and mode switching. Specifically, during the path planning and mode switching process, the computing power consumption of the main processor is further reduced by intermittently shutting down and waking up the scanning module, baseband processing module, and positioning module. In addition, according to the needs of different application scenarios, different analysis intention results and information capture frequencies can be selected to meet different navigation needs.

[0064] In practical applications, the method of the present invention can be widely used in the fields of Beidou satellite navigation system, vehicle navigation, smart phone navigation, etc. By implementing the method of the present invention, not only the accuracy and timeliness of navigation are improved, but also the service life of the equipment is effectively extended and the waste of energy is reduced. Therefore, the present invention has broad application prospects and important practical value.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for ultra-low standby power consumption at Beidou satellite navigation chip level, characterized in that: The following steps are involved: Step 1: Scan and save: The scanning module in the main processor pre-scans the entire path to be navigated, and analyzes the current status information of the path according to the past information of the path, wherein the past information of the path includes the time of passing the path, the length of the path, the number of traffic lights and the congestion index, and stores the information in the temporary memory; Step 2: Compare and correct: The baseband processing module in the main processor receives the status information in the temporary memory, and the scanning module intermittently captures the real-time path status information and sends the real-time path status information to the baseband processing module. The baseband processing module compares the two information and corrects them to obtain real-time information. Step 3: Path planning: The positioning module in the main processor receives the above real-time information, and performs calculations and navigation to form a specific planned path; Step 4: Mode switch: The main processor controls the scanning module, the baseband processing module and the positioning module to be shut down intermittently, that is, to switch between the sleep mode and the non-sleep mode.

2. The method for ultra-low standby power consumption of Beidou satellite navigation chip according to claim 1, characterized in that: In step one, by analyzing the past information of the path, specifically, the priority of the intended results of the analysis is: time passing through the path > congestion index > path length > number of traffic lights.

3. The method for ultra-low standby power consumption of Beidou satellite navigation chip according to claim 2, characterized in that: The priority of the intended results of the analysis is: time to pass the path > path length > congestion index > number of traffic lights.

4. The method for ultra-low standby power consumption of Beidou satellite navigation chip according to claim 1, characterized in that: In step 2, after the baseband processing module receives the status information in the temporary memory, the temporary memory is closed.

5. The method for ultra-low standby power consumption of Beidou satellite navigation chip according to claim 1, characterized in that: In step 2, the scanning module intermittently captures information based on the path passing time. Specifically, information is captured once every 1 / 10-5 / 1 of the path passing time.

6. The method for ultra-low standby power consumption of Beidou satellite navigation chip according to claim 1, characterized in that: In step three, after the positioning module in the main processor forms a specific planned path, the scanning module, the baseband processing module and the positioning module are turned off.

7. The method for ultra-low standby power consumption of Beidou satellite navigation chip according to claim 1, characterized in that: In step 4, when entering the non-sleep mode, repeat step 2.

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