TWI803165B - Display method of remote monitoring - Google Patents

Abstract

A display method for remote monitoring, which is suitable for a vehicle positioning device, a server and a monitoring host, and includes: the server determines a communication cycle according to a current speed of a vehicle; when the server judges that the current speed is greater than Or when it is equal to a vehicle speed threshold, determine the corresponding N pieces of estimated position information according to the actual position information detected by the vehicle positioning device at the latest time in the past; the server sends the corresponding actual position information at intervals according to the communication cycle and the corresponding N pieces of estimated location information are sent to the monitoring host; the monitoring host will sequentially display the actual location information and the N pieces of estimated location information received each time on a webpage according to a first predetermined time interval A vehicle indicator is displayed at a corresponding location in a map.

Description

Display method of remote monitoring

The present invention relates to a display method, in particular to a display method for remote monitoring.

The known display method of remote monitoring is applicable to a vehicle positioning device, a server, and a monitoring host, and includes: detecting an actual position information (such as longitude and latitude) of a vehicle set by the vehicle positioning device ), and upload to the server; the monitoring host continuously obtains the actual location information of the vehicle from the server with a predetermined communication cycle; the monitoring host displays a webpage, which includes a map and An indicator of a vehicle should be actual location information, thereby enabling a user to monitor and view the real-time location of the vehicle.

However, this method needs to maintain a relatively high communication frequency between the monitoring host and the server, that is, the predetermined communication cycle must be small enough to enable the vehicle indicator to keep moving smoothly on the map of the web page sex. Therefore, whether there are other display methods for remote monitoring to improve the limitation that the communication cycle must be kept at a low value becomes an unsolved problem.

Therefore, the purpose of the present invention is to provide a display method for remote monitoring, which can overcome at least one problem of the above-mentioned prior art.

Therefore, a display method for remote monitoring provided by the present invention is applicable to a vehicle positioning device, a server, and a monitoring host. The server establishes a connection with the vehicle positioning device and the monitoring host, and the vehicle positioning device regularly detects an actual location information of a vehicle, and sequentially sends the actual location information to the server. The display method of the remote monitoring includes the following steps: (S1) determine a communication cycle according to a current speed of the vehicle by the server; (S2) when the server determines that the current speed is greater than or equal to a speed threshold , determine the N estimated position information corresponding to the current vehicle speed, N is a positive integer, and the N estimated position information is generated by the server based on the actual position information at the latest time in the past; (S3) by The server transmits the corresponding actual location information and the N estimated location information corresponding to the actual location information to the monitoring host at intervals according to the communication cycle; and (S4) displaying in a webpage by the monitoring host A map, and sequentially displaying a vehicle indicator at a corresponding position in the map according to a first predetermined time interval for the actual position information and the N estimated position information received from the server each time.

In some implementations, the vehicle positioning device also periodically detects a vehicle speed of the vehicle, and sequentially transmits the vehicle speed and the actual position information to the server respectively, and in step (S1), the The server is based on one of the speeds received One of the most recent time in the past is used as the current vehicle speed.

In some implementations, in step (S1), the server stores a cycle comparison table, the cycle comparison table includes the corresponding relationship between a plurality of vehicle speed ranges and a plurality of cycle values, and the server stores in the cycle comparison table The period value corresponding to the vehicle speed range that matches the current vehicle speed is determined as the communication period.

In some implementation aspects, the display method for remote monitoring further includes the following steps between step (S1) and step (S2): (S5) by the server also storing a ratio table, the ratio table Including the corresponding relationship between the vehicle speed ranges and a plurality of scale values, the server determines the scale value corresponding to the speed range corresponding to the current speed in the scale comparison table as a map scale. In step (S3), the server also transmits the corresponding map scale to the monitoring host at intervals according to the communication period. In step (S4), the monitoring host also determines the scale in the map based on the map scale.

In some implementation aspects, the display method for remote monitoring further includes the following steps after step (S5): (S6) when the server determines that the current vehicle speed is less than the vehicle speed threshold, The corresponding actual location information is transmitted to the monitoring host, so that the monitoring host sequentially displays the vehicle indicator at the corresponding position in the map according to a second predetermined time interval.

The effect of the present invention is that: when the server judges that the current vehicle speed is greater than or equal to the vehicle speed threshold, it will make a push based on the actual position information at the latest time in the past. Estimated to generate the N estimated position information corresponding to the vehicle speed, so that the N estimated position information can be estimated between every two adjacent actual position information, so the monitoring host and the servo In the case of maintaining a relatively high communication cycle between the devices, the vehicle index displayed by the monitoring host still maintains smooth movement in the map of the web page.

1: Vehicle positioning device

2: Server

3: Monitoring host

S21~S27: Steps

Other features and functions of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: FIG. 1 is a block diagram illustrating a vehicle location to which an embodiment of the display method for remote monitoring of the present invention is applicable. device, a server, and a monitoring host; and FIG. 2 is a flowchart illustrating an embodiment of a display method for remote monitoring of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to FIG. 1 , an embodiment of the display method for remote monitoring of the present invention is applicable to a vehicle positioning device 1 , a server 2 and a monitoring host 3 . The server 2 establishes connection with the vehicle positioning device 1 and the monitoring host 3 . The vehicle positioning device 1 periodically detects an actual position information of a vehicle, and regularly Actual location information, calculating a vehicle speed of the vehicle, and sequentially sending the actual location information and the vehicle speed to the server 2 . The vehicle positioning device 1 can be implemented as a car navigation system, for example. The server 2 stores a cycle comparison table and a ratio comparison table. The cycle comparison table includes correspondences between a plurality of vehicle speed ranges and a plurality of cycle values respectively. The ratio comparison table includes correspondences between the vehicle speed ranges and a plurality of ratio values. The monitoring host 3 may include a screen display or any user display device. Each piece of actual location information is, for example, a longitude and latitude location data.

Referring to FIG. 1 and FIG. 2 , how the server 2 cooperates with the vehicle positioning device 1 and the monitoring host 3 to implement an embodiment of the remote monitoring display method of the present invention is described in detail. The display method of remote monitoring includes steps S21-S27.

In step S21, the server 2 determines a communication cycle according to one of the received vehicle speeds which has passed the latest time. In more detail, it is defined that among the vehicle speeds, the most recent time in the past is a current vehicle speed, and the server 2 determines the cycle value corresponding to the vehicle speed range corresponding to the current vehicle speed in the cycle comparison table as a The communication period and the ratio value corresponding to the vehicle speed range determined to be consistent with the current vehicle speed in the ratio comparison table are used as a map ratio.

Table 1 exemplarily illustrates a form of the cycle comparison table:

Among them, "20~30" means greater than or equal to 20 (km/hr) and less than 30(km/hr), and so on for other fields. For example, when the current vehicle speed is 50 (km/hr), according to Table 1, it can be known that the corresponding communication period is 5 (s/time).

Table 2 exemplarily illustrates a pattern of the ratio comparison table:

Among them, "20~30" means greater than or equal to 20 (km/hr) and less than 30 (km/hr), and so on for other fields. For example, when the current vehicle speed is 50 (km/hr), according to Table 2, it can be known that the corresponding map scale is 15, that is, the scale or zoom ratio of the map.

In step S22, the server 2 determines whether the current vehicle speed is greater than or equal to a vehicle speed threshold. In this embodiment, the current vehicle speed threshold is 50 (km/hr). If the judgment result is affirmative, the process will proceed to step S23. On the contrary, if the judgment result is negative, the process will proceed to step S26.

In step S23, when the server 2 determines that the current vehicle speed is greater than or equal to the vehicle speed threshold, the server 2 determines the N estimated position information corresponding to the current vehicle speed. The N pieces of estimated location information are generated by the server 2 based on the estimation of the actual location information in the latest time in the past. Continuing the previous example and Table 1, when the speed of the vehicle is 50 (km/hr), the communication cycle is 5 (s/time), then the server is based on the actual position information at the 10th second and the previous nearest ( For example, the actual location information at the 5th second or the 9th second), estimate the four estimated location information at the 11th, 12th, 13th, and 14th seconds in a linear extension News, that is, N is equal to 4.

In step S24, the server 2 transmits the corresponding actual location information, the corresponding map scale and the N estimated location information corresponding to the actual location information to the monitoring host 3 at intervals according to the communication period. Continuing the previous example, for example, the server 2 transmits the actual location information at the 10th second, the four information at the 11th, 12th, 13th, and 14th seconds respectively according to the communication cycle equal to 5 (seconds/times). Estimated location information and the data whose map scale is equal to 15 are sent to the monitoring host 3 together, and then, the actual location information at the 15th second, the four at the 16th, 17th, 18th, and 19th seconds respectively Estimated location information and the data that the map scale is equal to 15 are sent to the monitoring host 3 together.

In step S25, the monitoring host 3 displays a map on a web page, and the actual location information and the N estimated location information received from the server 2 each time according to a first predetermined time interval A vehicle indicator is displayed at a corresponding position in the map and a scale in the map is determined by the map scale. In this embodiment, the first predetermined time interval is 1 second. Continuing from the previous example, if the vehicle is moving at a speed equal to 50 (km/hr) from the 5th second to the 15th second, the monitoring host 3 will receive the actual position information in the 5th second in sequence and the four estimated location information at the 6th, 7th, 8th, and 9th seconds respectively, and then receive the actual location information at the 10th second and the four estimated location information at the 11th, 12th, 13th, and 14th seconds respectively estimated position information, and then received the actual position information at the 15th second and the four estimated positions at the 16th, 17th, 18th and 19th seconds respectively Set information, and the monitoring host 3 sequentially displays the position information of the vehicle indicators from the 5th second to the 19th second at the first predetermined time interval of every 1 second. That is to say, the first predetermined time interval is equal to the time difference corresponding to the actual position information and the first estimated position information following it, and is equal to the time difference corresponding to the two adjacent estimated position information equal.

In step S26, when the server 2 determines that the current vehicle speed is lower than the vehicle speed threshold, the server 2 transmits the corresponding actual location information to the monitoring host 3 at intervals according to the communication cycle. Continuing from the previous example, for example, if the vehicle is moving at a speed equal to 30 (km/hr) from the 0th second to the 5th second, then the server 2 is equal to 1 (s/time) according to the communication period ) transmit the actual location information in the first second and the data whose map scale is equal to 17 to the monitoring host 3, and then send the actual location information in the second second and the data whose map scale is equal to 17 sent to the monitoring host 3.

In step S27, the monitoring host 3 sequentially displays the vehicle indicator at a corresponding position in the map according to a second predetermined time interval. In this embodiment, the second predetermined time interval is 1 second.

As can be seen from the foregoing illustration, when the vehicle is moving at a speed equal to 30 (km/hr) from the 0th second to the 5th second, the vehicle index displayed by the monitoring host 3 is in the form of 1 second The second predetermined time interval of the time interval sequentially displays the actual location information from the 1st second to the 4th second, and when the vehicle is in the 5th second to the 15th second When moving at a speed equal to 50 (km/hr), the vehicle indicators displayed by the monitoring host 3 are also sequentially displayed at the 5th second to the 19th second at the first predetermined time interval of every 1 second. The location information (that is, the actual location information and the estimated location information), therefore, can maintain the same display fluency. In addition, it should be specially added that: in other embodiments, the first predetermined time interval may also be unequal to the second predetermined time interval, for example, the first predetermined time interval is 1 second, and the second predetermined time interval If it is 0.2 seconds, then when the speed of the vehicle is faster, the vehicle index is displayed on the map with a smaller time difference.

In addition, it should be added that: in this embodiment, the vehicle positioning device 1 periodically detects the actual position information of the vehicle to calculate the vehicle speed of the vehicle, and transmits the vehicle speed to the server 2 . In other embodiments, the vehicle positioning device 1 may not calculate the vehicle speeds, but not transmit the vehicle speeds to the server 2, and the server 2 is based on the actual past time of the vehicle. The location information is used to calculate the vehicle speed.

To sum up, when the server 2 judges that the current vehicle speed is greater than or equal to the vehicle speed threshold, it generates the N estimated position information corresponding to the vehicle speed based on the actual position information at the latest time in the past, so that The N pieces of estimated location information can be estimated between every two pieces of adjacent actual location information, so the monitoring host 3 and the server 2 can maintain a relatively high communication cycle , the vehicle indicator displayed by the monitoring host still keeps moving smoothly in the map of the web page In addition, through the server 2, the corresponding map scale is sent to the monitoring host 3 at intervals according to the communication cycle, so that the map can display different scales according to the speed of the vehicle, so that the vehicle index can be displayed on the web page Smooth movement in this map, never too fast or too slow. Therefore, the display method for remote monitoring of the present invention can indeed achieve the purpose of the present invention.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

S21~S27: Steps

Claims (5)

A display method for remote monitoring, suitable for a vehicle positioning device, a server, and a monitoring host, the server establishes a connection with the vehicle positioning device and the monitoring host, and the vehicle positioning device periodically detects the location of a vehicle An actual location information, and sequentially transmit the actual location information to the server, the display method of the remote monitoring includes: (S1) determining a communication cycle by the server according to a current speed of the vehicle; (S2) When the server judges that the current vehicle speed is greater than or equal to a vehicle speed threshold, it determines N estimated position information corresponding to the current vehicle speed, N is a positive integer, and the N estimated position information is obtained by the server according to the past The actual location information at the latest time is generated by estimation; (S3) sending the corresponding actual location information and the N pieces of estimated location information corresponding to the actual location information to the monitoring host at intervals according to the communication cycle by the server; and (S4) Displaying a map on a web page by the monitoring host, and sequentially displaying the actual location information and the N pieces of estimated location information received from the server each time according to a first predetermined time interval A vehicle indicator is displayed at the corresponding location on the map. According to the display method of remote monitoring as described in Claim 1, the vehicle positioning device also periodically detects a vehicle speed of the vehicle, and sequentially transmits the vehicle speed and the actual position information to the server, wherein , in step (S1), the server is based on one of the received vehicle speeds that has passed the most recent time as the current vehicle speed. The display method of remote monitoring as described in claim 2, wherein, in step (S1), the server stores a cycle comparison table, and the cycle comparison table includes the corresponding relationship between multiple vehicle speed ranges and multiple cycle values , the server determines the period value corresponding to the vehicle speed range corresponding to the current vehicle speed in the period comparison table as the communication period. The display method of remote monitoring as described in request item 3, further comprising: In the step (S5) between the step (S1) and the step (S2), the server also stores a proportional comparison table, the proportional comparison table includes the corresponding relationship between the speed ranges and a plurality of proportional values, the The server determines the scale value corresponding to the speed range corresponding to the current speed in the scale comparison table as a map scale, In step (S3), the server also transmits the corresponding map scale to the monitoring host at intervals according to the communication cycle, In step (S4), the monitoring host also determines the scale in the map based on the map scale. The display method of remote monitoring as described in request item 4, also includes: (S6) When the server judges that the current vehicle speed is less than the vehicle speed threshold, the server transmits the corresponding actual location information to the monitoring host at intervals according to the communication cycle, so that the monitoring host can follow a second predetermined time interval The vehicle indicators are sequentially displayed at corresponding positions on the map.

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