TWI394931B - Control method of starting navigation positioning system and electronic appartus using the same - Google Patents

Description

Navigation control system startup control method and electronic device using same

The present invention relates to a method for starting control of a navigation and positioning system and an electronic device using the same, and more particularly to a method for automatically starting a navigation and positioning system as the device of the navigation and positioning system is moved.

The Global Positioning System (GPS) is a navigation system that combines satellite and wireless technologies. In addition to providing accurate positioning, it also provides information on speed, time, direction and distance. In order to improve the convenience of users' daily life, most of the portable mobile devices or vehicles will have a global navigation and positioning system in place for users to perform the positioning, direction guidance and path planning of the current location anytime and anywhere. .

However, the global navigation and positioning system needs to receive the satellite positioning signal transmitted by the satellite, and compare the map information of the relevant region to complete the positioning, so that the user needs to go through a satellite positioning waiting time from executing the global navigation and positioning system to obtaining the map positioning information. . If the user is in a chaotic traffic environment, the user will be confused when the waiting time is too long and the accurate positioning information cannot be obtained immediately. Moreover, the device using the global navigation and positioning system is often too complicated for the operation and use program. For users who are not familiar with the interface or the software, it takes time to set the startup navigation and positioning system, which is easy to cause inconvenience.

In view of this, the present invention provides a method for starting control of a navigation and positioning system and an electronic device using the same, which can automatically activate a navigation and positioning system to improve the convenience of use of the navigation and positioning system.

The invention provides a start control method for a navigation and positioning system, which determines whether to activate a navigation and positioning system by comparing a horizontal acceleration measured by an acceleration sensor with a threshold value.

The invention provides a start control method for a navigation and positioning system applied to an electronic device, which is a method for determining whether to activate a navigation and positioning system according to a comparison result between a horizontal acceleration of an electronic device and a threshold.

In the above embodiment, the starting control method can obtain a gravity value according to the horizontal acceleration and the gravity acceleration, and select one of a plurality of moving states according to the magnitude of the gravity value, wherein the setting state corresponds to the threshold value. .

In the above embodiment, the navigation control system is activated when the horizontal acceleration is greater than or equal to the threshold for the first predetermined time.

The invention provides an electronic device comprising a navigation positioning system, a signal detection module and a control module. The navigation positioning system is used to locate the location of the electronic device. The signal detection module detects the horizontal acceleration of the movement of the electronic device. The control module is coupled between the signal detection module and the navigation and positioning system, and according to the comparison result of the horizontal acceleration and the threshold, the control signal is enabled to activate the navigation and positioning system.

The electronic device described above, in an embodiment, the electronic device further includes a state The module is selected and coupled to the signal detection module. The state selection module obtains a gravity value according to the horizontal acceleration and the gravity acceleration, and selects one of a plurality of movement states to set the state, and the setting state corresponds to the threshold.

In the above embodiment, the control module includes a first comparison unit and a time counting unit. The first comparison unit is configured to enable the first signal when the horizontal acceleration is greater than or equal to the threshold. The time counting unit is coupled to the first comparing unit, and is controlled by the first signal to enable the counting of the first preset time, and enables the control when the first signal is enabled for the first preset time. signal.

According to the detected horizontal acceleration, the invention knows the moving state of the device applying the navigation positioning system, and then determines whether to activate the navigation positioning system. When the movement of the device applying the navigation and positioning system continues for the first predetermined time, the navigation and positioning system is automatically activated for the user to locate the location. In this way, the user does not need to start the navigation and positioning system through complicated operation procedures, and the navigation and positioning system can be activated automatically, and the positioning can be performed early, and the waiting time required for positioning is relatively shortened.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

The navigation and positioning system is usually applied to an electronic device or a vehicle for the user to locate the location at any time. For example, the embodiment of the present invention can automatically start the guide according to the movement of the electronic device. Navigation positioning system.

1A and 1B are flowcharts of a method for starting and controlling a navigation and positioning system according to an embodiment of the present invention. Referring to FIG. 1A, when the electronic device is moved by being carried on the user or placed in the vehicle, the speed of movement of the electronic device changes with time to generate acceleration. By detecting the horizontal acceleration of the movement of the electronic device (step S101), the movement of the electronic device can be known, and then the navigation positioning system can be determined according to the comparison result between the horizontal acceleration of the electronic device and the threshold. In this embodiment, an acceleration sensor (G-sensor) may be disposed in the electronic device to measure the horizontal acceleration of the electronic device. The acceleration sensor is not necessary. When the electronic device is placed in the vehicle, the horizontal acceleration of the electronic device can also be obtained according to the speed and time of the vehicle movement.

Since the electronic device may be carried on a walking user or placed on a locomotive, a car, and a public transportation vehicle, the horizontal acceleration of the electronic device may vary depending on the placement position. In order to adjust the reference threshold value according to the moving state of different vehicles, the embodiment calculates a gravity value (G-force) according to both the horizontal acceleration and the gravity acceleration of the electronic device (step S102), and according to the gravity value from the plurality of One of the moving states is selected as the setting state (step S103), and the different moving states respectively correspond to different threshold values. For example, the moving state selected is larger as the gravity value is larger, and the corresponding critical value is also larger.

When the horizontal acceleration of the electronic device is less than the critical value (step S104), the electronic device is regarded as not moving, and thus it is not necessary to activate the navigation and positioning system (step S105). When the horizontal acceleration of the electronic device is greater than or equal to At the critical value (step S104), the electronic device is likely to be moving. In order to prevent the user from shaking or instantaneously shaking the horizontal acceleration generated by the electronic device to falsely activate the navigation positioning system, the navigation positioning system is activated when the electronic device has a horizontal movement and continues for the first predetermined time (step S106). Step S107).

Referring to FIG. 1B, after the navigation and positioning system is started (step S107), if the horizontal acceleration of the electronic device is greater than or equal to the threshold (step S108), it indicates that the electronic device continues to move, thereby maintaining the activation of the navigation and positioning system (steps) S109). On the other hand, it is further judged that the electronic device temporarily stops moving in the horizontal direction or is stationary for a long time. If the horizontal acceleration of the electronic device is less than the threshold value and does not last for the second predetermined time (step S110), indicating that the electronic device temporarily stops moving in the horizontal direction, for example, the vehicle in which the electronic device is placed stops the traffic light or the traffic jam, thus maintaining The navigation system is activated (step S109). If the horizontal acceleration of the electronic device is less than the threshold value and continues for the second predetermined time (step S110), the electronic device is likely to be stationary for a long time, and it is further determined whether the navigation positioning system is turned off to save power of the electronic device. And reduce the computing resources needed for positioning.

At this time, although the electronic device does not move in the horizontal direction, if the electronic device is placed on a vehicle in which the engine is continuously operated, it should have a speed change in the vertical direction. By detecting the vertical acceleration of the movement of the electronic device (step S111), it can be further determined whether to close the navigation and positioning system. The vertical acceleration of the electronic device may vary within a predetermined range due to different engine vibration directions, so when the vertical acceleration of the electronic device is within a predetermined range At the time (step S112), the activation of the navigation and positioning system is maintained (step S109), otherwise the navigation and positioning system is turned off (step S113) to save power of the electronic device and reduce computing resources required for positioning.

It should be noted that although the above embodiment is configured to measure the horizontal acceleration and the vertical acceleration in the electronic device, the acceleration sensor is not limited thereto. The acceleration sensor can also be configured in the vehicle to transmit data through the wireless communication method and the device of the application navigation positioning system to automatically activate the navigation and positioning system.

2 is a schematic diagram of an electronic device according to an embodiment of the present invention. Referring to FIG. 2 , the electronic device 200 includes a navigation and positioning system 210 , a signal detection module 220 , a control module 230 , and a state selection module 240 . The navigation and positioning system 210 is used to locate the location of the electronic device 200. The signal detecting module 220 is configured to detect the horizontal acceleration a _H and/or the vertical acceleration a _{V of the} electronic device 210, wherein the signal detecting module 220 can be implemented by using, for example, an acceleration sensor. The control module 230 is coupled between the signal detection module 220 and the navigation and positioning system 210. Based on the comparison between the horizontal acceleration a _H and the threshold TH, the control signal CON is enabled to activate the navigation and positioning system 210. The state selection module 240 is coupled to the signal detection module 220, which calculates the gravity value according to the horizontal acceleration a _H and the gravity acceleration g, and selects one of the plurality of movement states as the setting state according to the gravity value. In this case, different moving states respectively correspond to different critical values, and the gravity value is used to select the set state, and the threshold TH can be appropriately adjusted according to the moving state.

The control module 230 includes a first comparison unit 231, a second comparison unit 232, and a time counting unit 233. FIG. 3A is a timing diagram of the operation of the control module 230 of FIG. 2 according to an embodiment of the present invention. Referring to FIG. 3A and FIG. 2, the first comparison unit 231 compares the horizontal acceleration a _{H of the} movement of the electronic device 200 with the threshold TH. When the horizontal acceleration a _{H is} greater than or equal to the threshold TH, the first comparison unit 231 enables the first signal S1 to control the time counting unit 233 to start counting the first preset time T1, where the signal is enabled. It has a high logic level and the disabled signal has a low logic level. When the first signal S1 is enabled for the first predetermined time T1, the time counting unit 233 enables the control signal CON to activate the navigation and positioning system 210. Thereby, the navigation and positioning system 210 can be automatically activated when the electronic device 200 has a horizontal movement and continues for the first preset time T1.

After the navigation and positioning system 210 is activated, since the electronic device 200 still has a horizontal movement for a period of time T, the control signal CON is continuously enabled to maintain the activation of the navigation and positioning system 210. When the horizontal acceleration a _{H is} smaller than the threshold TH, the first comparison unit 231 disables the first signal S1 to control the time counting unit 233 to start counting of the second preset time T2. When the disablement of the first signal S1 continues for the second predetermined time T2, the time counting unit 233 disables the control signal CON to turn off the navigation and positioning system 210. Thereby, the navigation positioning system can be automatically turned off when the electronic device 200 stops moving in the horizontal direction and continues for the second preset time T2.

FIG. 3B is another timing diagram of the operation of the control module 230 of FIG. 2 according to an embodiment of the present invention. Referring to FIG. 3B and FIG. 2 , similarly, when the electronic device 200 has a horizontal movement and continues for the first preset time T1 , the time counting unit 233 enables the control signal CON to activate the navigation positioning system 210 . Then, the electronic device 200 still has a horizontal direction for a period of time T The state of movement, so the control signal CON is continuously enabled to maintain the activation of the navigation and positioning system 210.

After a period of time T, the first signal S1 is disabled due to the electronic device 200 stopping the horizontal movement. In order to prevent the electronic device 200 from erroneously turning off the navigation and positioning system 210 only for temporarily stopping the movement in the horizontal direction, the present embodiment further refers to the vertical acceleration a _{V of the} electronic device 200 after the electronic device 200 stops moving in the horizontal direction. It is determined whether the navigation and positioning system 210 is turned off. In the present embodiment, the second comparison unit 232 compares the vertical acceleration a _V with a predetermined range. When the vertical acceleration a _V is within a predetermined range, the second comparison unit 232 enables the second signal S2, and conversely disables the second signal S2.

When the electronic device 200 stops moving in the horizontal direction and the vertical direction, the first signal S1 and the second signal S2 are disabled, and the control time counting unit 233 starts counting of the second preset time T2. Here, the first signal S1 and the second signal S2 may be processed by a simple logic unit (for example, an inverse or a gate) to generate a signal that the control time counting unit 233 starts counting for the second predetermined time T2. When the disabling of the first signal S1 and the disabling of the second signal S2 are continued for the second preset time T2, it indicates that the electronic device 200 is stationary for a long time, so the time counting unit 233 disables the control signal CON to close the navigation. Positioning system 210. Thereby, the navigation positioning system can be automatically turned off when the electronic device 200 stops moving in the horizontal direction and the vertical direction for the second preset time T2.

In summary, the above embodiment automatically activates the navigation and positioning system to improve navigation in accordance with the horizontal movement of the device of the application navigation and positioning system. The convenience of the positioning system in use. Since the device to which the navigation positioning system is applied may have different moving states of different speeds, the above embodiment may adaptively adjust the threshold value referenced by the starting navigation positioning system to respond to changes in the moving state. In addition, after the navigation and positioning system is activated, the above embodiment determines whether the device applying the navigation positioning system temporarily stops moving or moves for a long time by using the horizontal acceleration and/or the vertical acceleration of the device applying the navigation positioning system, thereby determining whether Turn off the navigation and positioning system.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

S101~S113‧‧‧ steps of a navigation positioning system startup control method according to an embodiment of the present invention

200‧‧‧Electronic devices

210‧‧‧Navigation and Positioning System

220‧‧‧Signal Detection Module

230‧‧‧Control Module

231‧‧‧ first comparison unit

232‧‧‧Second comparison unit

233‧‧‧Time counting unit

240‧‧‧Status selection module

a _H ‧‧‧ horizontal acceleration

a _V ‧‧‧vertical acceleration

S1‧‧‧ first signal

S2‧‧‧ second signal

CON‧‧‧ control signal

1A and 1B are flowcharts of a method for starting and controlling a navigation and positioning system according to an embodiment of the present invention.

2 is a schematic diagram of an electronic device according to an embodiment of the present invention.

3A and 3B are timing diagrams showing the operation of the control module of FIG. 2 according to an embodiment of the present invention.

S101~S107‧‧‧ steps of a navigation and positioning system startup control method according to an embodiment of the present invention

Claims (15)

A method for starting control of a navigation and positioning system, comprising: detecting a horizontal acceleration measured by an acceleration sensor; and starting the navigation and positioning system according to a comparison result of the horizontal acceleration and a threshold; according to the horizontal acceleration a gravity acceleration, obtaining a gravity value; and selecting one of a plurality of movement states according to the magnitude of the gravity value, wherein the setting state corresponds to a threshold value. The activation control method of claim 1, wherein the movement states respectively correspond to a plurality of vehicles, including locomotives, automobiles, and public transportation vehicles. The method for starting control according to claim 1, wherein the step of starting the navigation and positioning system according to the comparison between the horizontal acceleration and the threshold comprises: when the horizontal acceleration is greater than or equal to the threshold, continuing with a first When the time is preset, the navigation positioning system is activated. The method as claimed in claim 3, wherein after the starting the navigation and positioning system, the method further comprises: detecting one of the vertical accelerations measured by the acceleration sensor; and when the horizontal acceleration is less than the threshold When the second preset time is not located within a predetermined range, the navigation positioning system is turned off. The method for starting control as described in claim 3, wherein After the navigation and positioning system is activated, the navigation and positioning system is further closed when the horizontal acceleration is less than the threshold for a second predetermined time. A method for starting control of a navigation and positioning system, wherein the navigation and positioning system is applied to an electronic device, comprising: obtaining a gravity value of one of the electronic devices according to a horizontal acceleration and a gravity acceleration of the electronic device; And selecting one of a plurality of moving states, wherein the set state corresponds to at least one threshold; and when the horizontal acceleration is greater than or equal to the threshold for a first predetermined time, the navigation positioning system is activated. The activation control method of claim 6, wherein after the navigation and positioning system is activated, the method further comprises: when the vertical acceleration of the electronic device is not within the predetermined range, and the horizontal acceleration is less than the threshold At the second preset time, the navigation positioning system is turned off. The start control method of claim 7, wherein the horizontal acceleration and the vertical acceleration are measured by an acceleration sensor. The activation control method of claim 6, wherein the movement states respectively correspond to a plurality of vehicles, including locomotives, automobiles, and public transportation vehicles. An electronic device includes: a navigation and positioning system for positioning a location of the electronic device; a signal detection module for detecting a horizontal acceleration of the electronic device; a control module coupled between the signal detection module and the navigation and positioning system, based on a comparison result between the horizontal acceleration and a threshold a control signal is enabled to activate the navigation and positioning system; and a state selection module is coupled to the signal detection module to obtain a gravity value according to the horizontal acceleration and a gravity acceleration and select a plurality of movement states according to the A set state in which the set state corresponds to a critical value. The electronic device of claim 10, wherein the moving states respectively correspond to a plurality of vehicles, including locomotives, automobiles, and public transportation vehicles. The electronic device of claim 10, wherein the control module comprises: a first comparing unit, configured to enable a first signal when the horizontal acceleration is greater than or equal to the threshold; and a time The counting unit is coupled to the first comparing unit, and is controlled to enable the first signal to start counting of a first preset time, and when the first signal is enabled for the first preset time, Enable the control signal. The electronic device of claim 12, wherein the first comparing unit disables the first signal when the horizontal acceleration is less than the threshold, and the time counting unit is controlled by the disabled A signal is used to initiate a second preset time count, and the disablement of the first signal continues for the second predetermined time, the control signal is disabled to disable the navigation positioning system. An electronic device according to claim 12, wherein the electronic device The signal detection module further detects a vertical acceleration of the electronic device, and the control module further includes: a second comparison unit coupled to the time counting unit, when the vertical acceleration is not within the predetermined range, Disabling a second signal; wherein the time counting unit is controlled to disable the first signal and disable the second signal to initiate a second preset time count, and the first signal is disabled When the disablement of the second signal is continued for the second predetermined time, the control signal is disabled to close the navigation positioning system. The electronic device of claim 10, wherein the signal detecting module comprises an acceleration sensor.