TWI744609B - Object positioning method - Google Patents

Abstract

The invention discloses an object positioning method. The method comprises the following steps. First, a first positioning interface, installed in a first mobile device, is started. Then, the first positioning interface drives the first mobile device to scan a first relative location of an object by a first positioning signal. And, a first environment location of the first mobile device is obtained by the first mobile device. And, a first positioning location corresponding to the object is calculated according to the first environment location and the first relative location.

Description

Object positioning method

The present invention relates to an object positioning method, in particular to a multi-layer object positioning method.

With the improvement of labor safety and hygiene awareness, the safety of construction sites has been paid more and more attention in recent years. There are many small details that can improve site safety. For example, monitoring equipment can be used to monitor the number and location of people entering the site. Or in response to different construction projects, monitoring equipment can be used to check whether personnel are wearing corresponding safety equipment. However, some problems are often encountered in actual implementation. For example, when the scope of the construction site is large or the construction site is located in a remote mountainous area, traditional monitoring equipment is often unable to accurately grasp the location of each person due to the limited quantity and the influence of the terrain. For another example, traditional monitoring equipment often has the problem of insufficient resolution, and it is also not easy to distinguish whether personnel are actually wearing corresponding safety equipment. In addition, because traditional monitoring equipment inevitably has blind spots for monitoring, it is also impossible to use the monitoring equipment to observe the health status of each person.

Therefore, the industry needs a new method of object positioning. In addition to overcoming the problem of the lack of resolution of traditional surveillance equipment, which makes it impossible to distinguish whether personnel are wearing safety equipment, it must also be able to accurately grasp the location of each individual.

The present invention provides an object positioning method, which not only can more effectively grasp the location and health status of each person, and after appropriate settings, can also distinguish whether the person actually wears the corresponding safety equipment.

The present invention provides an object positioning method, which includes the following steps. First, the first positioning interface is executed, and the first positioning interface is installed on the first mobile device. Then, the first mobile device is driven by the first positioning interface, so that the first mobile device scans the first relative position of the object with the first positioning signal. In addition, the first mobile device obtains the first environmental location corresponding to the first mobile device. And, according to the first environment position and the first relative position, the first positioning position associated with the object is calculated.

In some embodiments, the step of obtaining the first environmental position corresponding to the first mobile device by the first mobile device may further include providing a plurality of positioning devices, each of which transmits its own environmental positioning signal. In addition, at least one environmental positioning signal is scanned by the first mobile device. And, according to the at least one environmental positioning signal, the first environmental position corresponding to the first mobile device is calculated. In addition, the object may transmit a first feedback signal according to the first positioning signal, and the first mobile device obtains the first relative position of the object according to the first feedback signal. In addition, each positioning device and object may each have a Bluetooth beacon transmitting module.

In some embodiments, the object positioning method may further include the following steps. First, the second positioning interface is executed, and the second positioning interface is installed on the second mobile device. Then, the second mobile device is driven by the second positioning interface, so that the second mobile device scans the second relative position of the object with the second positioning signal. The second environmental location corresponding to the second mobile device is obtained by the second mobile device. According to the second environmental position and the second relative position, a second positioning position associated with the object is calculated. And, positioning the object according to the first positioning position and the second positioning position.

In summary, the object positioning method provided by the present invention makes use of mobile devices that people often carry with them. In addition to using mobile devices to scan objects and obtain the relative position of the mobile device and the objects, it can also use positioning devices or global positioning systems. To locate the environmental location of the mobile device. In this way, the present invention combines the relative position of the mobile device and the object with the environmental position of the mobile device, so that the positioning of the object can be completed in a multi-level manner. In this way, the object positioning method provided by the present invention can not only more effectively grasp the location and health status of each person, and after appropriate settings, it can also distinguish whether the person actually wears the corresponding safety equipment.

The features, objectives and functions of the present invention will be further disclosed below. However, the following are only examples of the present invention, and should not be used to limit the scope of the present invention, that is, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention will still be the essence of the present invention. Without departing from the spirit and scope of the present invention, it should be regarded as a further implementation aspect of the present invention.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a flowchart illustrating the steps of an object positioning method according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of using the object positioning method according to an embodiment of the present invention. As shown in the figure, in step S10 of this embodiment, the first positioning interface in the first mobile device 20a can be executed first, and the first positioning interface can be installed in the first mobile device 20a. In practice, the first mobile device 20a can be a mobile phone, a tablet computer, a wearable device, or other devices with computing capabilities, and the first mobile device 20a can be carried by a person and directly controlled. In one example, the first positioning interface may be an application program, which may be pre-installed in the first mobile device 20a. In practice, this embodiment does not limit who executes the first positioning interface. For example, a person carrying the first mobile device 20a may execute the first positioning interface. For example, when a person enters the scope of a construction site, he can operate the first mobile device 20a by himself to open the first positioning interface in the first mobile device 20a. Alternatively, the remote device can be connected to the first mobile device 20a, and the remote device can remotely execute the first positioning interface. For example, the unit responsible for site safety can have a server. After confirming the personnel entering the site, they can remotely connect to the corresponding personnel’s first mobile device 20a, and the server can remotely execute the operations in the first mobile device 20a. The first positioning interface.

Alternatively, the first mobile device 20a may automatically execute the first positioning interface according to a trigger of a specific condition. For example, there may be a signal transmitter at the entrance and exit of a construction site. When the first mobile device 20a receives the signal from the signal transmitter, it can automatically execute the first positioning interface in the first mobile device 20a. Those with ordinary knowledge in the technical field of the present invention should be able to understand the various types of the specific conditions. This embodiment is not limited here. For example, the specific conditions may also include time, schedule, location or power of the first mobile device 20a. Wait. Taking the specific condition as the power of the first mobile device 20a as an example, when the power of the first mobile device 20a is above a certain level, the first positioning interface will be automatically executed. Conversely, if the power of the first mobile device 20a is too low, in order to avoid hindering people from making emergency calls using the first mobile device 20a, the first mobile device 20a may also choose not to execute the first positioning interface.

In step S12, the first mobile device 20a is driven by the first positioning interface, so that the first mobile device 20a scans the first relative position of the object 30 with the first positioning signal. As in the foregoing example, the first positioning interface can be controlled by the user to drive the first mobile device 20a, or remotely controlled to drive the first mobile device 20a, or drive the first mobile device 20a by itself according to conditions. This embodiment is here. No restrictions. In practice, the object 30 may be a signal transmitter, and the first mobile device 20a needs to have a corresponding relationship with the object 30. The correspondence relationship described here refers to the use of the same or compatible communication technology means, rather than corresponding to the appearance of the shape or being sold in groups. For the convenience of description, it is assumed that the object 30 is a Bluetooth beacon transmission module. Those skilled in the art should understand that the first mobile device 20a needs to support Bluetooth technology in order to scan the object 30. In one example, in addition to using Bluetooth technology, the first mobile device 20a and the object 30 may also use other common communication technology means, such as Wifi, Zigbee, or LoRa, which is not limited in this embodiment.

Here, when the first mobile device 20a scans the object 30 with the first positioning signal, the first positioning signal can be used to determine whether there is an object 30 in a specific range. This embodiment does not limit the distance in the specific range here, and those with ordinary knowledge in the technical field should understand that different communication technical means can correspond to different operating distances. In one example, the first positioning signal may be, for example, a scanning signal using Bluetooth technology. After receiving the scanning signal, the object 30 may correspondingly transmit a first feedback signal in response to the first mobile device 20a. Then, the first mobile device 20a can obtain the relative position (first relative position) of the object 30 according to the first feedback signal. In one example, the first mobile device 20a can determine the distance between the object 30 and the first mobile device 20a according to the signal strength of the first feedback signal. Of course, the first mobile device 20a may also be more dependent on the signal direction of the first feedback signal to assist in determining the relative orientation of the object 30 and the first mobile device 20a.

In step S14, the first mobile device 20a obtains the first environmental location corresponding to the first mobile device 20a. In one example, the first mobile device 20a may use multiple positioning devices 40a-40c to assist in positioning. Here, the positioning device 40a, the positioning device 40b, and the positioning device 40c can transmit respective environmental positioning signals, and the first mobile device 20a scans the environmental positioning signals. As mentioned above, the first mobile device 20a also needs to have a corresponding relationship with the positioning device 40a, the positioning device 40b, and the positioning device 40c. The corresponding relationship also refers to the use of the same or compatible communication technology means. In practice, the positioning device 40a, the positioning device 40b and the positioning device 40c can be pre-installed in the construction site, and the actual positions of the positioning device 40a, the positioning device 40b and the positioning device 40c can be recorded in advance. In one example, the first mobile device 20a can calculate its own position (the first environmental position) based on two or more positioning devices.

For example, assuming that the first mobile device 20a simultaneously scans three environmental positioning signals from the positioning device 40a, the positioning device 40b, and the positioning device 40c, the first mobile device 20a can analyze the received three environmental positioning signals The relative position of the first mobile device 20a to the positioning device 40a, the positioning device 40b and the positioning device 40c is calculated. Then, since the actual positions of the positioning device 40a, the positioning device 40b, and the positioning device 40c are known, a person with ordinary knowledge in the relevant technical field should be able to use the first mobile device 20a for the positioning device 40a, the positioning device 40b, and the positioning device 40c. The relative position is combined with the actual positions of the positioning device 40a, the positioning device 40b, and the positioning device 40c to convert the actual position of the first mobile device 20a.

Although this embodiment shows three positioning devices, the number of positioning devices is not limited. For example, in this embodiment, only one positioning device may be used to calculate the position of the first mobile device 20a. In an example, the positioning device 40a may correspond to a position code, and the environmental positioning signal transmitted by the positioning device 40a includes the position code, so that when the first mobile device 20a scans the environmental positioning signal transmitted by the positioning device 40a, it It can be known that the first mobile device 20a is within the signal transmission range of the positioning device 40a. Assuming that the positioning device 40a is known to be installed at a certain bridge pier in the construction site, as long as the signal transmission range of the positioning device 40a is small, for example, only 5 to 10 meters, the positioning effect can naturally be achieved. For example, the first mobile device 20a can infer that it is currently at a certain bridge pier from the position code in the environmental positioning signal. In one example, the signal transmission range of the positioning device 40a can be adjusted, for example, by adjusting the transmission power, so that the positioning device 40a, the positioning device 40b, and the positioning device 40c can each have a different signal transmission range. The examples are not limited here.

It is worth mentioning that the first mobile device 20a may also know its own location without using the positioning device. For example, the first mobile device 20a may also directly receive global positioning system (GPS) signals, so as to calculate the first environmental position from the GPS signals. In practice, the method for the first mobile device 20a to estimate the location of the first environment can be determined according to the construction site environment. Assuming that the construction site is in a mountainous area and the scope of the construction site is large, if the positioning device is used to estimate the first environmental position according to the foregoing embodiment, a very large number of positioning devices may need to be installed in various places on the construction site in advance, which may cause a cost burden. At this time, if the built-in GPS function of the first mobile device 20a (such as a mobile phone, a tablet or a wearable device) is used to directly receive GPS signals, and the GPS signals are used to calculate the first environment position, additional costs can be reduced. . On the other hand, assuming that the construction site is in a tunnel, a basement, or a complex indoor structure, and it is not easy to receive GPS signals in practice, a setting device can be pre-installed on the construction site to facilitate the estimation of the first environmental location.

Next, it is explained in step S16 that after the first environmental position is obtained in step S14, and the first relative position of the first mobile device 20a and the object 30 is obtained in step S12, the actual position associated with the object 30 can be calculated (The first positioning position). Here, the present embodiment does not limit which device calculates the actual position of the object 30. For example, the actual position of the object 30 may be calculated by the first mobile device 20a, or the first mobile device 20a may calculate the first environment The position and the first relative position are uploaded to the cloud platform (not shown in the figure), and the actual position of the object 30 is calculated by the cloud platform.

In practice, the cloud platform can also record the actual positions of multiple objects at the same time, as well as the movement tracks of multiple objects on the construction site. Taking the object 30 as an example, the cloud platform can record the actual position (first positioning position) of the object 30 at a fixed time interval, that is, the movement track includes the first positioning position of the object 30 and the corresponding time point (time stamp), thereby It can track the location of every object in the construction site at every point in time. The fixed time interval can be set freely. For example, the cloud platform or the first positioning interface can set the scanning frequency of the first mobile device 20a, so that the first mobile device 20a can scan the object 30 according to the scanning frequency. In one example, the scanning frequency may be related to the power of the first mobile device 20a. When the power of the first mobile device 20a is below a certain level, the scanning frequency may be set to be lower to avoid excessive consumption of the first mobile device. The power of the mobile device 20a.

Taking an example of a practical application, the first mobile device 20a of this embodiment may be a mobile phone of a person, and the object 30 may be a smart watch, a smart bracelet or a wearable device equipped with communication technology means. Assuming that all persons entering the construction site are allotted smart watches (items 30), the relative positions of the smart watches can be scanned by the personnel's mobile phones (first mobile device 20a), and the relative positions of the mobile phones and the persons wearing the smart watches can be inferred. Then, after the mobile phone obtains its own position through the positioning device or GPS, it uploads the aforementioned relative position and the aforementioned own position to the cloud platform, and the cloud platform converts the position of the person wearing the smart watch, and can know that the person is at a certain construction site How much time. Furthermore, by recording the movement trajectory of each person, the working status of a specific person can be known. For example, if a person stays in a smoking area for too long, it may be necessary to remind that person. In addition, if a certain person stays in the construction area for a certain period of time and does not move, it may also be a health problem, and someone can be sent to check and care immediately.

On the other hand, the object 30 may not only be a wearable device such as a smart watch, but also be installed in safety equipment that a person must carry and wear. For example, if the personnel entering the construction site are required to wear reflective vests, traditionally they can only use human resources at the entrance and exit to confirm whether the personnel entering the construction site are wearing reflective vests. Different from the traditional method, in this embodiment, the object 30 can be pasted or sewn into the reflective vest, and it can be easily judged whether the object 30 is discarded and not worn or carried by whether the actual position of the object 30 has changed. . Therefore, in this embodiment, it is possible to check whether the person is actually wearing or wearing the safety equipment, and the location of the person can also be inferred from the location of the object 30. Of course, the object 30 can also be installed on different equipment depending on the conditions of the construction site. For example, if there is biogas in the construction site, the object 30 can be pasted or sewn into the gas mask, which is not limited in this embodiment.

Unlike traditional surveillance equipment that is easily affected by the terrain and cannot accurately grasp the location of each person, the first mobile device 20a in this embodiment may be a mobile phone. Generally speaking, the mobile phone is usually carried by the person. And will not be placed too far away from the personnel. Therefore, the first mobile device 20a of this embodiment can easily scan the object 30 carried or worn by a person, which can greatly reduce the problem of monitoring blind spots or unable to locate.

In addition, the object 30 can also be scanned by different mobile devices at the same time. Please refer to FIG. 2 and FIG. 3 together. FIG. 3 is a schematic diagram illustrating the use of the object positioning method according to another embodiment of the present invention. As shown in the figure, except for the same steps as in FIG. 2, FIG. 3 further illustrates the second mobile device 20 b and the third mobile device 20 c. In practice, the operations of the first mobile device 20a, the second mobile device 20b, and the third mobile device 20c are the same. Here, when the second mobile device 20b scans the object 30 with the second positioning signal, the second mobile device 20b can obtain the relative position (second relative position) of the object 30 according to the second feedback signal. And, when the third mobile device 20c scans the object 30 with the third positioning signal, the third mobile device 20c can obtain the relative position (third relative position) of the object 30 according to the third feedback signal.

In addition, the second mobile device 20b and the third mobile device 20c can also use multiple positioning devices to estimate their respective locations (the second environmental position and the third environmental position), or directly receive GPS signals, and use the GPS signals to calculate their respective positions. Location (the second environment location and the third environment location). Here, the multiple positioning devices may be a positioning device 40a, a positioning device 40b, and a positioning device 40c or other positioning devices. In other words, one positioning device is not limited to only one mobile device for scanning, and the same positioning device may help multiple mobile devices to calculate the location.

Continuing the above, the second mobile device 20b and the third mobile device 20c can obtain the second relative position and the third relative position relative to the object 30, and also obtain their respective positions (the second environmental position and the third environmental position). Accordingly, the second mobile device 20b can upload the second relative position and the second environmental position to the cloud platform, and calculate the actual position (the second positioning position) associated with the object 30. Similarly, the third mobile device 20c can upload the third relative position and the third environmental position to the cloud platform, and calculate the actual position (third positioning position) associated with the object 30. In practice, the cloud platform can respectively calculate the first positioning position, the second positioning position, and the third positioning position associated with the object 30. If the first positioning position, the second positioning position, and the third positioning position are the same or similar, then One of them can be selected as the actual position of the object 30. In addition, the cloud platform can also recalculate (for example, interpolate) the actual position of the object 30 through the first positioning position, the second positioning position, and the third positioning position, which is not limited in this embodiment.

It is worth mentioning that this embodiment does not directly use the positioning device 40a, the positioning device 40b, and the positioning device 40c to position the object 30. The reason is that the positioning device 40a, the positioning device 40b, the positioning device 40c, and the object 30 do not have a scanning function, so the positioning device 40a, the positioning device 40b, and the positioning device 40c cannot directly scan the object 30 or perform triangulation positioning. Those with ordinary knowledge in the relevant technical field should understand that the cost of a positioning device without a scanning function is much lower than that of a positioning device with a scanning function. Therefore, when the scope of the construction site is generally large, a considerable number of positioning devices are required, and the positioning device of this embodiment has more chances to be widely used by the industry. In addition, since the positioning device 40a, the positioning device 40b, the positioning device 40c, and the object 30 do not have a scanning function, the power consumption is very low, which is beneficial to long-term installation on the construction site.

In this embodiment, the first mobile device 20a, the second mobile device 20b, and the third mobile device 20c are used for scanning. There is already sufficient power. In view of the rapid progress of mobile phones in recent years, they are equipped with various communication technologies such as Bluetooth and Wifi, and only need to install the application (the first location interface) to operate, and it also eliminates the cost of construction. In addition, the first mobile device 20a, the second mobile device 20b, and the third mobile device 20c shown in FIG. 3 are closer to the object 30. In fact, the positioning device 40a, the positioning device 40b, and the positioning device 40c can be used proportionally. The positioning of the object 30 is more accurate and can be applied to sheltered or rugged terrain.

In summary, the object positioning method provided by the present invention makes use of mobile devices that people often carry with them. In addition to using mobile devices to scan objects and obtain the relative position of the mobile device and the objects, it can also use positioning devices or global positioning systems. To locate the environmental location of the mobile device. In this way, the present invention combines the relative position of the mobile device and the object with the environmental position of the mobile device, so that the positioning of the object can be completed in a multi-level manner. In this way, the object positioning method provided by the present invention can not only more effectively grasp the location and health status of each person, and after appropriate settings, it can also distinguish whether the person actually wears the corresponding safety equipment.

S10~S16: Step flow 20a: The first mobile device 20b: Second mobile device 20c: Third mobile device 30: Object 40a, 40b, 40c: positioning device

FIG. 1 is a flowchart showing the steps of an object positioning method according to an embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating the use of an object positioning method according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing the use of an object positioning method according to another embodiment of the present invention.

without

S10~S16: Step flow

Claims (8)

An object positioning method includes: executing a first positioning interface installed on a first mobile device; driving the first mobile device by the first positioning interface so that the first mobile device uses a first mobile device The positioning signal scans a first relative position of an object; a plurality of positioning devices are provided, and each positioning device emits a respective environmental positioning signal; the first mobile device scans at least one environmental positioning signal; The environmental positioning signal calculates the first environmental position corresponding to the first mobile device; and calculates a first positioning position associated with the object according to the first environmental position and the first relative position. The object positioning method according to claim 1, wherein the object transmits a first feedback signal according to the first positioning signal, and the first mobile device obtains the first relative position of the object according to the first feedback signal. The object positioning method according to claim 1, wherein each positioning device corresponds to a position code, and the environmental positioning signal includes the position code. The object positioning method according to claim 1, wherein each of the positioning device and the object has a Bluetooth beacon transmitting module. The object positioning method according to claim 1, wherein the step of obtaining the first environmental position corresponding to the first mobile device by the first mobile device further includes: receiving a global positioning system from the first mobile device Signal; and According to the GPS signal, the first environmental position corresponding to the first mobile device is calculated. The object positioning method according to claim 1, further comprising: executing a second positioning interface installed on a second mobile device; and driving the second mobile device by the second positioning interface so that the second positioning interface The second mobile device scans a second relative position of the object with a second positioning signal; the second mobile device obtains a second environmental position corresponding to the second mobile device; according to the second environmental position and the second relative position Position, calculating a second positioning position associated with the object; and positioning the object according to the first positioning position and the second positioning position. The object positioning method according to claim 1, further comprising: recording a movement track associated with the object on a cloud platform; wherein the movement track includes the first positioning position and a time stamp. The object positioning method according to claim 1, further comprising: setting a scanning frequency; according to the scanning frequency, scanning the first relative position of the object with the first positioning signal.

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