TWI382155B - Map information update device and method - Google Patents

Description

Map information updating device and method

The present invention relates to a map information updating device and method, and more particularly to a map information updating device and method using GPS positioning technology.

The Global Positioning System (GPS) can provide a wide range of applications, such as resource survey and detection, navigation and positioning, geodetic surveying, mapping, position dynamic information, and precise timing. The general user usually uses the position dynamic information function. By using the GPS signal receiver and the map database for calculation, the user's location can be displayed immediately. This is also the operation of the general map information update system (such as GPS navigation device). the way. However, the GPS technology currently used in the map information update system has the following disadvantages:

(1) When the GPS navigation device is turned on, it needs to wait for a while to operate normally. Generally, when the GPS navigation device on the market is powered on, it must wait for tens of seconds to several minutes for the GPS navigation device to receive the GPS signal and calculate the coordinates before displaying the updated map information. However, such a satellite signal receiving process may cause inconvenience in use.

(2) GPS signal reception is not easy, and the continuous update of the map information will be interrupted. The ability of GPS signals to penetrate the shield is poor. Therefore, GPS signals cannot be received in buildings, tunnels, and underpasses. It is difficult to receive GPS signals even when the weather is bad and clouds are dense. As a result, the map information update system cannot continuously update the information.

(3) The GPS navigation device consumes a lot of power and reduces the standby time of the handheld device. At present, the operating current of the GPS device is between 10 mA and 100 mA. Continuously turning on the map information update function will reduce the standby time of the handheld device (such as a mobile phone or a PDA) combined with the GPS navigation function, thereby greatly reducing its practicability.

In summary, how to provide a more convenient and efficient map data update system and method has become an urgent problem to be solved.

In order to solve the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a map information updating apparatus and method for avoiding the problem that the map data cannot be quickly obtained due to the poor GPS signal strength.

Another object of the present invention is to provide a map information updating apparatus and method, such that an electronic device that performs positioning processing by using a GPS signal does not continuously receive a GPS signal when the GPS signal is not good, thereby causing a problem of power consumption.

To achieve the foregoing and other objects, the present invention provides a map information updating apparatus and method. The map information updating device is applied to an electronic device having a positioning function, the map information updating device includes: a map database for storing map data; at least one positioning signal receiving module for receiving a positioning signal; and a GPS signal The receiving module is configured to receive a GPS signal; the coordinate computing module is configured to calculate the coordinate of the positioning signal and/or the GPS signal corresponding to the map data; and the map updating module is configured to use the positioning signal The coordinate of the coordinate or GPS signal is updated on the map data; and the mode switching module is based on the GPS signal receiving status, the positioning signal receiving status, the power maintenance state of the electronic device, and/or the coordinates. The new state sends a trigger signal to the map update module for switching the update mode of the map data.

The map information updating method of the present invention comprises the following steps: (1) determining whether the received GPS signal is converted into coordinate information within a predetermined time, and converting to coordinate information, proceeding to step (5), not converting to coordinate information. Then, proceed to step (2); (2) suspend receiving the GPS signal, and switch to receive the positioning signal; (3) convert the positioning signal into coordinate information and update the map data; (4) determine whether to start Receiving the GPS signal, when starting, returning to step (1), when not starting, returning to step (3); and (5) updating the coordinate information of the GPS signal to the map data, returning to step (1) .

Compared with the prior art, the map information updating apparatus and method of the present invention solves the disadvantages of the conventional GPS navigation apparatus. The map information updating device of the present invention mainly operates by using at least one positioning signal receiving device in combination with a GPS navigation device. When the GPS navigation device is just turned on, the GPS signal cannot be received, or the GPS signal strength is too weak, the map information update device of the present invention updates the coordinates obtained by the positioning signal receiving module to the map information, so that the user does not lose See the timeliness of map information. When the user only needs simple map information, the power-consuming GPS navigation device can be turned off, and the signal receiving module can only receive signals, convert coordinates and update map information through the positioning signal receiving module. Therefore, the map information updating device and method of the present invention greatly improves the convenience and immediacy of the user inquiring the map information, and solves the problems of inconvenience and power consumption of the prior art.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate the other advantages and advantages of the present invention. The invention may also be embodied or applied by other different embodiments.

Please refer to FIG. 1 , which is a schematic diagram of the basic structure of the map information updating device of the present invention. As shown in the figure, the map information updating apparatus 1 of the present invention is applied to an electronic device having a positioning function, such as a mobile phone, a personal digital assistant (PDA) or a navigation device, etc., and the map information updating device 1 includes map data. The library 10, the positioning signal receiving module 11, the GPS signal receiving module 12, the coordinate calculating module 13, the map updating module 14, and the mode switching module 15.

The map database 10 is used to store map data, which is stored in a storage medium. The map data stored in the map database 10 is a type of information that can display geographic information such as roads, buildings, terrain, and landforms in a specific area. In the present invention, the map data is used to assist the coordinate data to indicate the location of the electronic device.

The positioning signal receiving module 11 is configured to receive the positioning signal. The so-called positioning signal refers to a message capable of determining the location of the device receiving the signal. For example, a signal transmitted by a Global Positioning System (GPS) satellite is a kind of positioning signal, and a signal sent by a wireless communication base station in its range of range can also be used as a positioning signal. For example, the access point of the wireless local area network (Access Point), the signal sent by the working range is also a positioning signal. The positioning signal receiving module 11 of the embodiment receives the predetermined The bit signal does not include the GPS signal. For example, the positioning signal can be a mobile communication system signal and/or a wireless network system signal.

The GPS signal receiving module 12 is configured to receive GPS signals. Since the GPS satellite continuously transmits the GPS signal, as long as the GPS signal receiving module 12 is turned on, the positioning signal transmitted by the satellite can be received at any time. The coordinate calculation module 13 is configured to calculate the coordinate of the positioning signal and/or the GPS signal corresponding to the map data. Since the electronic device with the positioning function must be positioned by coordinates, the received positioning signal and the GPS signal must be converted into coordinates by the coordinate calculation module 13. The common practice is to construct a coordinate database of positioning signals. When the coordinate calculation module 13 obtains a specific positioning signal, the coordinate database is pre-established to find a coordinate corresponding to the positioning signal.

The map update module 14 is used to update the coordinates of the positioning signal or the coordinates of the GPS signal in the map data. Since the coordinates are constantly changing as the electronic device having the positioning function moves, the map update module 14 is required to update the latest coordinates to the existing map data.

The mode switching module 15 sends a trigger signal to the map update module 14 for switching the update mode of the map data according to the GPS signal receiving state, the positioning signal receiving state, the power maintaining state, and/or the map data state. The mode switching module 15 has a relatively important function in the map information updating device 1 of the present invention. The mode switching module 15 must switch the map update mode according to different states, so that the map data updating device of the present invention can be continuously maintained. In the case of map update, the power saving function is also considered.

Furthermore, the mode switching module 15 determines that the signal is based on an external input signal. Whether to send GPS signal coordinate update information or location signal coordinate update information. The external input signal is sent by the electronic device to initiate or close the GPS signal receiving request, for example, the user generates the start or close request by pressing a button set on the electronic device, or the electronic device detects the GPS. The signal strength is strong to generate the start or close request.

The trigger signal may include GPS signal coordinate update information, and the map update module 14 is configured to update the GPS signal coordinate to the map data and the location signal coordinate update information, so that the map update module 14 The location signal coordinates are updated on the map material.

In the specific implementation of the present invention, map data of a specific area is first stored in the map database 10, and then the GPS signal is received by the GPS signal receiving module 12. Under normal circumstances, the coordinate calculation module 13 converts the received GPS signal into coordinates, and then the map update module 14 updates the coordinates of the GPS signal to the map data. In this way, the user can instantly know the current location through the map information update device. The above process is also the operation mode of the conventional GPS positioning device.

However, in a special case, the GPS signal strength is vulnerable to shadowing and interference, so the positioning effect is naturally affected. For example, when the weather is not good, when the cloud is dense, the GPS signal cannot penetrate the thick cloud layer, and the GPS signal receiving module 12 may not receive GPS signals. For example, when the user is located under the viaduct and there are buildings on both sides, it is not easy to receive the GPS signal. When the GPS signal receiving module 12 does not receive the GPS signal or the GPS signal strength is too low, the latest coordinates cannot be updated to the map data in real time, thus causing great trouble to the user. And when the mode switch of the present invention When detecting the abnormality of the GPS signal receiving state, the module 15 immediately sends a trigger signal to the map updating module 14 for switching the update mode of the map data. Since the positioning signal receiving module 11 can continuously receive the specific type of positioning signal, the local map updating module 14 can immediately update the coordinates of the positioning signal to the map data when receiving the trigger signal, so the map information updating device of the present invention does not Stop updating the coordinates because the GPS signal is not received. However, the resolution of the coordinates is determined according to the type of the positioning signal.

In a specific embodiment, since the GPS signal receiving module 12 starts at a slower speed, the user has to wait a few minutes to complete the update of the first coordinate when the user just turns on the general GPS positioning device. The map information updating device of the present invention can first enter the coordinate updating mode of the positioning signal (usually low resolution) when the power is turned on, and when the GPS signal receiving module 12 can start working, switch back to the coordinate updating mode of the GPS signal, for example, When the intensity of the GPS signal received by the GPS signal receiving module 12 is greater than a specific value, the mode switching module 233 sends the GPS signal coordinate update information to the map update module 232, according to the coordinates of the received GPS signal. Update the map material. Therefore, the electronic device can continuously perform the positioning function without interruption.

In a preferred embodiment, since the GPS signal receiving module 12 consumes more power, the mode switching module 15 sends when the power of the map information updating device of the present invention is lower than a certain value or switches to the power saving mode. The map signal update information is sent to the map update module 14 to cause the map update module 14 to update the map data with the coordinates of the location signal. The advantage is that the standby and use time of the electronic device can be extended, and the electronic device can continuously provide positioning Features.

In another preferred embodiment, the user can set the map information updating device of the present invention to preferentially execute the update mode of the positioning signal coordinates. For example, in a suburb or a mountain, the density of buildings or roads is low. To reduce the power consumption of the map information update device, the mode can be set to use the positioning signal coordinates to update the map data. However, if a special situation occurs, such as a failure of the positioning signal transmitting device due to an earthquake, so that the device does not receive the positioning signal or the received signal strength is too low, the mode switching module 15 can transmit the GPS signal coordinate update information to the map update. The module 14 switches to the GPS coordinate update mode (because the GPS signal transmitting end is a satellite, which is not affected by the earthquake).

In another preferred embodiment, the mode switching module 15 can switch the coordinate update mode according to the state of the map data. For example, the user must drive through the A, B, and C areas, while the A is the suburb, the B is the mountain, and the C is the city. Based on the consideration of location efficiency, A is set to use GPS signals to locate. Because B is densely populated, it is set to GSM (Global System for Mobile Communications) base station signals to locate, and C is densely populated and covered with wireless area networks. The hot spot of the road is set to use WLAN (Wireless Area Network) signal to locate. When the user is in the A place, the map data shows that the coordinates are A, so the GPS signal positioning mode is activated. When the user is in the A place, the map data display coordinates are B, so the mode switching module 15 sends the GSM signal update information to the map update module 14 to switch to the GSM coordinate update mode. Similarly, when entering C, the mode switching module 15 sends the WLAN signal update information to the map update module 14 to switch to the WLAN coordinate update mode.

Please refer to FIG. 2, which is a schematic diagram showing the basic structure of the map information updating device 23 of the present embodiment applied to a mobile phone 2. The mobile phone 2 includes a display screen 20, a positioning signal receiving module 21 for receiving the GSM signal, a GPS signal receiving module 22, a map database 230, a coordinate calculating module 231, a map updating module 232, and a mode switching module. 233.

In a specific implementation, the positioning signal receiving module 21 must continuously receive the signal from the GSM base station 25 in order to perform the function of transmitting and receiving the mobile phone. The GSM signal receiving module 22 can receive the signal sent by the GPS satellite 24, convert it into a map coordinate through the coordinate calculation module 231, and the map update module 232 extracts the corresponding image from the map database 230 according to the map coordinate. The map data is displayed on the screen 20.

The mobile phone 2 of the embodiment implements a positioning method for progressive map information update through the mode switching module 233. When the user opens the map software to view the map, the map software receives the GPS signal through the positioning signal receiving module 21 and calculates the coordinates through the coordinate calculation module 231 to obtain the coordinates, and uses the map update module 232 to update the coordinate information. However, the process of updating the coordinates depends on the strength of the GPS signal, the speed at which the GPS signal is converted into coordinates, and the speed of the mobile phone. It usually takes a few minutes, so the timeliness of viewing the map is lost. At this time, when the GPS signal has not been converted into coordinate information, the mode switching module 233 notifies the map update module 232 to update the map information by using the coordinates of the GSM signal. Since the range of coordinates of the GPS signal is about tens of meters, and the signal range transmitted by the GSM base station is about several hundred meters, the resolution of the coordinates of the GSM signal on the map is lower than that of the GPS signal on the map. . Therefore, The progressive map information means that when the GPS signal has not been converted into coordinate information, the map information updating device of the present invention uses the GSM signal coordinate with poor resolution, and when the GPS signal receiving function can operate normally, the switch is switched to a higher resolution. GPS signal coordinate mode.

In a preferred embodiment, based on the power considerations, when the battery capacity of the mobile phone 2 drops to a certain level, the mode switching module 233 can notify the map update module 232 to switch to the GSM signal in order to maintain the continuous operation of the mobile phone. Coordinate update mode. Therefore, the user can still view the map information in real time (but the resolution is poor), and the ability to continuously navigate the power of the mobile phone 2 can be increased by turning off the functions of GPS signal reception and signal processing.

Please refer to FIG. 3 for displaying the signal receiving state of the mobile phone 2 shown in FIG. 2 disposed in the mobile vehicle 32.

The GPS satellite 30 can provide GPS signals for positioning. In this figure, 300a, 300b, 300c, 300d, 300e, 300f, and 300g are coordinates for GPS signal conversion. Since the mobile phone 2 is equipped with the mobile phone 2, the map information updating device 23 of the present invention can be used for positioning when the vehicle 32 is advanced, and the map information library 230 can be coordinated according to the coordinates obtained by the positioning. The current position is displayed on the display screen 20 of the telephone 2.

The basic function of the GSM base stations 31a, 31b is to provide the mobile phone 2 to send and receive communication signals, and the mobile phone 2 can be used normally when it is covered by the GSM base station. In this embodiment, the GSM base station is used for positioning, and the positioning signal receiver 21 in the map information updating device 23 of the present invention is used. By obtaining the base station number (cell ID) as a specific coordinate and matching the map data, the location of the mobile phone can be displayed.

As shown, the coverage of the GSM base station is large. For example, any point within the coverage of the GSM base station 31a represents the coordinates 310a, and the same is true at any point within the coverage of the GSM base station 31b. Represents coordinates 310b. It can be found that the number of GPS coordinates displayed in the same area is larger than the GSM coordinate number, because the coverage of the GSM base station is about several hundred meters, and the resolution of the GPS coordinates can reach several tens of meters, so if the GSM coordinates are used to update the map The details of the data are less detailed than the GPS coordinates.

The map database 230 can store the map data of the reachable range of the vehicle 32, and receive the positioning signal through the positioning signal receiving module 21 and the GPS signal receiving module 22 for receiving the GSM signal, and the signal is calculated by the coordinate calculating module 231. The coordinates are converted to the coordinates, and finally updated by the map update module 232 and displayed on the display screen 20 of the mobile phone, so that the driver can instantly grasp the geographical location.

In a preferred embodiment, the mode switching module 233 can send a trigger signal to the map update module 232 for switching according to the GPS signal receiving status, the GSM signal receiving status, the power maintenance status of the mobile phone, and the map data update status. Update mode of map data. In other words, the mode switching module 233 can select to locate by GPS signal or locate by GSM signal according to the preset criterion, which greatly improves the convenience and immediacy of the user to query the map information.

Please refer to FIG. 4, which is a flowchart of the map information updating method of the present invention, and the steps thereof are described in detail below.

In step S40, it is determined whether the GPS signal received by the electronic device having the positioning function has been converted into coordinate information within a predetermined time. If yes, the process goes to step S44, and if no, the process goes to step S41.

In step S41, the reception of the GPS signal is suspended, and switching to receive a positioning signal such as a mobile communication system signal or a wireless network system signal, and then proceeds to step S42.

In step S42, the positioning signal is converted into coordinate information and updated in the map data, and then proceeds to step S43.

In step S43, it is determined whether the electronic device receives the request to start the GPS signal reception, and if yes, the process returns to step S40, and if not, the process returns to step S42. The activation request may be generated by pressing a button provided on the electronic device or when the electronic device determines that the intensity of receiving the GPS signal is greater than a specific value. In other words, the external input mode of the electronic device may be generated according to the user's requirement. The request is initiated, or the electronic device detects the strength of the GPS signal to generate the activation request.

In step S44, the coordinates of the GPS signal are updated in the map data, and then the process returns to step S40.

In a preferred embodiment, the method for updating the map data may update the GPS signal or the coordinate information of the positioning signal to the map data according to a specific time period. For example, every 5 seconds or 10 seconds to update to save system resources.

It is further explained that the predetermined time of the foregoing step S40 can be set to 2 seconds or 5 seconds, etc., and the purpose of the predetermined time setting is that since the electronic device with the positioning function is just turned on, it cannot receive enough immediately. The satellite signal for positioning processing, therefore, the electronic device can first use the mobile communication system signal or the wireless network system signal as the positioning signal when the power is turned on, or when the electronic device is in an environment incapable of receiving the GPS signal, The above steps can be judged and processed to avoid the problem that the user can wait for the positioning process and cannot quickly obtain the map data due to the poor GPS signal strength. At the same time, the GPS signal can be continuously received while the GPS signal is not good, and the power consumption is caused. The problem.

In the progressive map update state, when the function module for performing GPS signal reception and processing needs to take time to retrieve the signal and convert it into coordinate data, it usually takes tens of seconds to several minutes, so the map of the present invention The information update method will continue to determine whether the GPS signal has been converted to coordinate information. If not, the map data will be updated with other types of positioning signals (such as GSM or GPRS (General Packet Radio Service) signal), but the resolution is poor. When the function module to be used for performing GPS signal reception or processing can operate normally, it switches to the GPS coordinate update mode, thus completing the entire progressive map update procedure.

Please refer to FIG. 5, which is a flowchart of a specific embodiment of the map information update method of the present invention, and the steps thereof are described in detail below.

In step S50, it is determined whether the function module for performing GPS signal reception or processing is in the on mode. If not, the process proceeds to step S53, and if it is in the on mode, the process proceeds to step S51.

In step S51, it is determined whether the received GPS signal is converted into coordinate information. If not, the process proceeds to step S53, and if the coordinate information has been converted, the process proceeds to step S52.

In step S52, updating the coordinate information of the GPS signal to the place The figure data is then returned to step S51.

In step S53, different types of positioning signals are received, and then the process returns to step S51.

In step S54, the plurality of positioning signals are converted into a plurality of coordinate information, and the coordinate information with the highest resolution is selected to be updated in the map data.

In the power saving mode, when the power of the electronic device having the positioning function drops to a certain value, the mode switching module of the map updating device of the present invention sends a trigger signal to the map update module to switch the GPS coordinate update mode to other The type of positioning coordinate update mode, and continuously monitor whether the function module for performing GPS signal reception or processing has normal operation, and once the GPS function module can normally receive the signal, switch to the GPS coordinate update mode. This saves power consumption of the electronic device with positioning function and improves standby time.

In a preferred embodiment, the map information updating apparatus of the present invention can receive a plurality of positioning signals, such as a GSM base station signal and a WLAN base station signal, and select the coordinate information with the highest resolution to update the map data. The resolution of the coordinate information depends on the location of the base station, the density of the base station, the number of users, and/or the coverage of the base station. Compared with the GSM base station and the WLAN base station, since the coverage of the WLAN base station is small, the number of base stations is large, so the resolution of the WLAN coordinates is higher than that of the GSM coordinates.

In another preferred embodiment, the map information updating apparatus of the present invention can be set to different areas and switched to different map update modes.

Therefore, it can be seen from the description of the above embodiments that the map information of the present invention is more The new device and method can provide a positioning mechanism for automatically switching the coordinate positioning mode according to the GPS signal receiving condition, and the coordinate positioning and map information updating method can enhance the convenience and immediacy of querying the map information, and solve the conventional technology. The inconvenience of use and the problem of power consumption of electronic devices that are positioned by GPS signals.

Through the aforementioned map information updating apparatus and method of the present invention, the following effects can be achieved.

(1) Enhance the immediacy of querying map information. By the auxiliary update of other positioning signal coordinates, the problem that the GPS signal is susceptible to interference and the positioning function is invalid can be solved.

(2) Improve the convenience of the use of the positioning device. When the GPS positioning module is turned on and waiting for signal reception and coordinate calculation, it can be switched to the update mode of other positioning signal coordinates, which makes the positioning device more convenient to use.

(3) It has a power saving function. Other types of power-saving positioning signal modules are used in the suburbs or areas that do not need to be accurately positioned to replace the GPS module for map data update.

The above embodiments are merely illustrative of the principles of the invention and its advantages, and are not intended to limit the invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention.

1‧‧‧Map information update device

10,230‧‧‧Map database

11,21‧‧‧Location signal receiving module

12,22‧‧‧GPS signal receiving module

13,231‧‧‧ coordinate calculation module

14,232‧‧‧Map Update Module

15,233‧‧‧ mode switching module

2‧‧‧Mobile Phone

20‧‧‧ Display screen

24‧‧‧GPS satellite

25‧‧‧GSM base station

30‧‧‧GPS satellite

300a~300g‧‧‧GPS coordinates

31a, 31b‧‧‧GSM base station

310a, 310b‧‧‧ base station coordinates

32‧‧‧Transportation

33‧‧‧Map information update device

330‧‧‧Map Database

S40, S41, S42‧‧‧ steps

S50, S51, S52, S53, S54‧‧‧ steps

1 is a schematic diagram of a basic structure of a map information updating device of the present invention; FIG. 2 is a view showing a map information updating device of the present invention applied to The schematic diagram of the basic structure of the mobile phone; FIG. 3 is a schematic diagram showing the signal receiving state of the mobile phone configured in the mobile phone of FIG. 2; FIG. 4 is a schematic flowchart of the map information updating method of the present invention; The figure is a schematic flowchart of a specific embodiment of a map information updating method of the present invention.

1‧‧‧Map information update device

10‧‧‧Map database

11‧‧‧ Positioning signal receiving module

12‧‧‧GPS signal receiving module

13‧‧‧Coordinate calculation module

14‧‧‧Map Update Module

15‧‧‧Mode Switching Module

Claims (18)

A map information updating device is applied to an electronic device having a positioning function, the map information updating device comprising: a map database for storing map data; at least one positioning signal receiving module for receiving a positioning signal; a GPS signal The receiving module is configured to receive a GPS signal; the coordinate computing module is configured to calculate the coordinate of the positioning signal and/or the GPS signal corresponding to the map data; and the map updating module is configured to use the positioning signal The coordinate of the coordinate or GPS signal is updated on the map data; and the mode switching module sends a trigger signal to the map update according to the GPS signal receiving status, the positioning signal receiving status, the power maintenance status of the electronic device, and/or the map data status. Module to switch the update mode of map data. The map information updating device of claim 1, wherein the positioning signal is a mobile communication system signal and/or a wireless network system signal. The map information updating device of claim 2, wherein the coordinate calculation module determines a coordinate of the corresponding mobile communication system base station in the map data according to a base station number (cell ID) in the mobile communication system signal. . The map information updating device of claim 1, wherein the trigger signal comprises: The GPS signal coordinate update information is used to enable the map update module to update the GPS signal coordinate to the map data; and the positioning signal coordinate update information is used to enable the map update module to update the positioning signal coordinate to the map data. . For example, the map information updating device of claim 4, wherein when the GPS signal receiving module is unable to receive the GPS signal or the intensity of the received GPS signal is less than a specific value, the mode switching module sends the positioning signal coordinate update. Information to the map update module. The map information updating device of claim 4, wherein the mode switching module sends the GPS signal coordinate update when the positioning signal receiving module cannot receive the positioning signal or the intensity of the received positioning signal is less than a specific value. Information to the map update module. The map information updating device of claim 4, wherein the mode switching module sends the positioning signal coordinate update information to the map update module when the power of the electronic device is insufficient or switches to the power saving mode. The map information updating device of claim 4, wherein when the intensity of the GPS signal received by the GPS signal receiving module is greater than a specific value, the mode switching module sends the GPS signal coordinate update information to the map update. Module. For example, the map information updating device of claim 4, wherein the mode switching module determines whether to send GPS signal coordinate update information or positioning signal coordinate update information according to an external input signal. A map information updating method applied to the patent application scope 1 The system includes the following steps: (1) determining whether the received GPS signal is converted into coordinate information within a predetermined time, and converting to coordinate information, proceeding to step (5), if not converted to coordinate information, Go to step (2); (2) suspend receiving GPS signal and switch to receive positioning signal; (3) convert the received positioning signal into coordinate information and update to the map data; (4) determine whether to start GPS The signal is received, and when it is started, it returns to step (1). If it is not started, it returns to step (3); and (5) updates the coordinate information of the GPS signal to the map data, and returns to step (1). For example, the map information updating method of claim 10, wherein the positioning signal is a mobile communication system signal and/or a wireless network system signal. For example, the map information updating method of claim 11 wherein the mobile communication system signal includes the base station number of the mobile communication system base station. For example, in the method for updating the map information of claim 12, wherein the step of converting the mobile communication system signal into coordinate information is to compare the received base station number with the location database of the base station to obtain a pair. Should be the coordinates of the base station. For example, in the map information updating method of claim 13, wherein the step (3) comprises receiving different types of positioning signals and converting the plurality of positioning signals into a plurality of coordinate information and selecting a resolution. The highest coordinate information is updated on the map material. For example, the method for updating map information according to claim 14 of the patent scope, wherein the resolution of the coordinate information of the base station depends on the location of the base station, the density of the base station, the number of users, and/or the coverage of the base station. For example, in the method for updating the map information of claim 10, in the step of updating the map data, the GPS signal or the coordinate information of the positioning signal is continuously updated to the map data according to the change of the position of the electronic device. For example, in the method of updating the map information of claim 16, wherein the step of updating the map data is to update the GPS signal or the coordinate information of the positioning signal to the map data according to a specific time period. The method for updating a map information according to claim 12, wherein the step (1) further comprises determining whether the strength of the GPS signal exceeds a specific value, and if the specific value is exceeded, proceeding to step (5) without exceeding The specific value proceeds to step (2).