CN116193366B - Z-wave-based positioning navigation method for intelligent hospital - Google Patents
Z-wave-based positioning navigation method for intelligent hospital Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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- H—ELECTRICITY
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a positioning navigation method of an intelligent hospital based on z-wave, which comprises the following steps: establishing connection between a user terminal and a main controller of the Internet of things of a hospital; acquiring the position information of the at least one z-wave intelligent control panel and the signal strength information between the at least one z-wave intelligent control panel and the user terminal, and determining the position information of the user terminal according to the position information; the user terminal sends destination information to the main controller, and the main controller generates a plurality of paths according to the position information of the user terminal and the destination information; and determining a unique path according to the communication connection quantity of the z-wave intelligent control panel in the paths. The positioning navigation method is parasitic under the control system of the Internet of things, and the positioning navigation is performed through the signal relation between the existing main controller and the plurality of z-wave intelligent control panels and the user terminal, so that the positioning navigation method is more accurate compared with GPS navigation, and the cost is saved compared with navigation of an indoor positioning technology.
Description
Technical Field
The invention belongs to the field of intelligent hospitals, and particularly relates to a z-wave-based positioning navigation method for intelligent hospitals.
Background
In recent years, with the rapid development of the internet of things, smart home has been deeply applied to thousands of households and various large public places. Hospitals, which are service type public places with huge traffic, most patients often have trouble that sickrooms cannot be found and family members cannot be found.
In the related art, a method of performing positioning navigation on a hospital may be as described in the prior art CN 105956978A. The basic idea is as follows: firstly, positioning a patient through a GPS satellite positioning tracker, and navigating according to positioning information. However, it is well known that GPS is more suitable for outdoor positioning, and its indoor positioning accuracy is poor, and its deviation may reach several tens of meters away. This degree of error makes it almost impossible to adapt the method to indoor positioning, especially for more highly personnel intensive and more closed hospital positioning. In other related art, positioning and navigation may be performed by combining indoor positioning base stations. However, since the hospital is not a large empty area but divided into many small areas, and the positioning base station has weak wall penetration capability, at least 2 or 3 positioning base stations need to be arranged in each small area. Therefore, this approach is cost-effective, subject to the high price of locating the base station. Furthermore, the prior art does not take into account the path procedure, and thus fails to provide the customer with an optimal path selection.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to solve the defects, and further provides a z-wave-based positioning navigation method for an intelligent hospital.
The invention adopts the following technical scheme.
The invention discloses a positioning navigation method of an intelligent hospital based on z-wave, which comprises the following steps of 1 to 3;
step 1, establishing connection between a user terminal and a main controller of the Internet of things of a hospital, wherein the user terminal is connected with the main controller through at least one z-wave intelligent control panel;
step 2, acquiring the position information of the at least one z-wave intelligent control panel and the signal strength information between the at least one z-wave intelligent control panel and the user terminal, and determining the position information of the user terminal;
and 3, generating a plurality of paths by the main controller according to destination information sent to the main controller by the user terminal, wherein each path consists of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels.
The second aspect of the invention discloses a positioning navigation system of an intelligent hospital based on z-wave, which comprises the following components: the system comprises a main controller, a plurality of z-wave intelligent control panels and a user terminal;
the user terminal is used for establishing connection between the user terminal and a main controller of the Internet of things of the hospital, wherein the user terminal is connected with the main controller through at least one z-wave intelligent control panel;
the main controller is used for acquiring the position information of the at least one z-wave intelligent control panel and the signal intensity information between the main controller and the user terminal, and determining the position information of the user terminal;
the main controller is used for generating a plurality of paths according to destination information sent to the main controller by the user terminal, wherein each path consists of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels.
Compared with the prior art, the invention has the following advantages:
(1) The positioning navigation method is parasitic under the control system of the Internet of things, and the positioning navigation is performed through the signal relation between the existing main controller and the plurality of z-wave intelligent control panels and the user terminal, so that the positioning navigation method is more accurate compared with GPS navigation, and the cost is saved compared with navigation of an indoor positioning technology.
(2) The invention also considers that different paths are optimized and selected to avoid too dense people flow.
(3) The invention also provides an intelligent error reporting function through the signal relation between the plurality of z-wave intelligent control panels and the user terminal, and prevents the user from deviating from the navigation route.
Drawings
Fig. 1 is a flowchart of a positioning navigation method of an intelligent hospital based on z-wave according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a route and a road section in a positioning navigation method according to an embodiment of the invention.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present invention and are not intended to limit the scope of protection of the present application.
Based on the defects in the background, the positioning navigation method is ingeniously parasitic under a system of the z-wave Internet of things, and the positioning navigation method of the intelligent hospital based on the z-wave is provided, as shown in fig. 1, and at least comprises the steps 1-3.
Step 1, connection between a user terminal and a main controller of the Internet of things of a hospital is established, wherein the main controller is associated with all z-wave intelligent control panels, and the user terminal is connected with the main controller through at least one z-wave intelligent control panel.
It can be understood that the user terminal and the z-wave intelligent control panel with a closer distance can establish a connection relationship, and the closer the distance is, the fewer obstacles are, the better the signal strength of the connection is.
In some embodiments, the master controller may be a PS-300 integrated intelligent host of the blogging systems integration Co., ltd; the z-wave intelligent control panel can be a PS-540 scene panel or a PS-541 mobile scene panel of the integrated doctor system limited company; the user terminal may be the user's IPAD or a cell phone, etc.
And 2, acquiring the position information of the at least one z-wave intelligent control panel and the signal strength information between the at least one z-wave intelligent control panel and the user terminal, and determining the position information of the user terminal according to the position information.
In the embodiment of the invention, considering that the z-wave intelligent control panel is densely arranged, the step 2 can specifically comprise the steps 2.1 to 2.2.
And 2.1, sequencing at least one z-wave intelligent control panel according to the signal intensity information between the at least one z-wave intelligent control panel and the user terminal.
And 2.2, determining the z-wave intelligent control panel with the strongest signal as the position information of the user terminal, wherein the position information can be a three-dimensional vector and comprises two-dimensional coordinate information and floor information.
In other embodiments of the present invention, the location information of the user terminal may be determined by combining algorithms according to the location information and the signal strength information of the plurality of z-wave intelligent control panels with the strongest signals.
And 3, the user terminal sends destination information to the main controller, and the main controller generates a plurality of paths according to the position information of the user terminal and the destination information, wherein each path consists of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels.
The destination information must be associated with the nearest z-wave intelligent control panel. As shown in FIG. 2, the thick solid line in FIG. 2 shows a part of the road section of one path L, 01-05 are the numbers of 5 z-wave intelligent control panels, and w 1-w 4 are nodes. It is understood that different nodes may be associated with the same z-wave intelligent control panel. The nodes are preset according to the position information of the z-wave intelligent control panel and have no relation with the path. Considering the influence of an obstacle, the setting of a node may also be defined as: when a user walks along the path L, the maximum value of the signal intensity information between the z-wave intelligent control panel of the user terminal and the user terminal is obtained in real time, and the node is the maximum extreme point of the maximum value of the signal intensity information.
Further, the method also comprises a step 4.
And 4, determining a unique path according to the communication connection quantity of the z-wave intelligent control panel in the paths, wherein the communication connection quantity is the quantity of user terminals connected with the z-wave intelligent control panel.
Considering that the traffic is too dense, in some embodiments, the step 4 may specifically include steps 4.1 to 4.2.
Step 4.1, respectively calculating people stream dense values of the paths, wherein the first step is that
People stream Density value of a Path->
The following formula is shown:
wherein,,
number representing road section,/->
Is->
Number of sections of a route, +.>
Indicate->
No. H of the path>
Length of individual road sections->
And->
Respectively represent->
In the path->
Connection number of z-wave intelligent control panel associated with individual node +.>
The number of communication connections of the z-wave intelligent control panel associated with each node.
And 4.2, selecting a path with the minimum people stream density value, and determining the path as a unique path.
Furthermore, the positioning navigation method of the invention can further comprise the steps 5 to 6.
And 5, when the user walks according to the unique path, the main controller acquires the maximum value of the signal intensity information between the z-wave intelligent control panel and the user terminal in real time, and the number of the z-wave intelligent control panel corresponding to the maximum value.
And 6, judging whether the user walks according to the unique path by the main controller according to the maximum value and the z-wave intelligent control panel number corresponding to the maximum value, and if not, sending an error walking prompt to the user terminal.
Correspondingly, in step 3, each path is composed of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels, specifically: when a user walks along the path L, the maximum value of the signal intensity information between the z-wave intelligent control panel of the user terminal and the user terminal is obtained in real time, the node is defined as the maximum extreme point of the maximum value of the signal intensity information, and the path is cut into at least one road section according to the node.
It can be understood that if the path is shown as L in fig. 2, the maximum value of the signal strength information on the path corresponds to the z-wave intelligent control panels numbered 01, 02 and 04 in sequence. And if the influence of the obstacle is not considered, defining the node as the maximum extreme point of the maximum value of the signal strength information, and sequentially setting the nodes of the path L as w 1-w 4.
Specifically, in step 6, it is determined whether the user walks according to the unique path, and if not, an erroneous walking prompt is sent to the user terminal, which may specifically be: judging according to a preset time interval, and if the following formula is always satisfied:
and judging that the user walks according to the unique path, and if not, sending an incorrect walking prompt to the user terminal. Wherein,,
number representing road section, whose initial value is 0, < >>
And->
Is->
Z-wave intelligent control panel number corresponding to 2 nodes of each road section, ++>
Representing the maximum value of signal intensity information between a z-wave intelligent control panel and a user terminal acquired in real time, and a function +.>
The number of the intelligent control panel corresponding to the information of the intensity of the acquired signal is represented by the symbol +.>
Representing if execution formula->
First, will->
Then, whether the equal sign is satisfied is judged.
It will be appreciated that in general, if
Due to->
Symbol, not required to be executed
。
Correspondingly, the invention also discloses a positioning navigation system of the intelligent hospital based on z-wave, which comprises the following components: the system comprises a main controller, a plurality of z-wave intelligent control panels and a user terminal.
The user terminal is used for establishing connection between the user terminal and a main controller of the Internet of things of the hospital, wherein the main controller is associated with all z-wave intelligent control panels, and the user terminal is connected with the main controller through at least one z-wave intelligent control panel.
It can be understood that the intelligent control panel and the main controller communicate through a z-wave protocol; the intelligent control panel communicates with the user terminal of the client through the z-wave protocol.
The main controller is used for acquiring the position information of the at least one z-wave intelligent control panel and the signal intensity information between the main controller and the user terminal, and determining the position information of the user terminal according to the position information.
The user terminal is used for sending destination information to the main controller, and the main controller is used for generating a plurality of paths according to the position information of the user terminal and the destination information, wherein each path is composed of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels.
The main controller is used for determining a unique path according to the communication connection quantity of the z-wave intelligent control panel in the paths, wherein the communication connection quantity is the quantity of user terminals connected with the z-wave intelligent control panel.
While the applicant has described and illustrated the embodiments of the present invention in detail with reference to the drawings, it should be understood by those skilled in the art that the above embodiments are only preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not to limit the scope of the present invention, but any improvements or modifications based on the spirit of the present invention should fall within the scope of the present invention.
Claims (7)
1. The positioning navigation method of the intelligent hospital based on z-wave is characterized by comprising the following steps of 1-3;
step 1, establishing connection between a user terminal and a main controller of the Internet of things of a hospital, wherein the user terminal is connected with the main controller through at least one z-wave intelligent control panel;
step 2, acquiring the position information of the at least one z-wave intelligent control panel and the signal strength information between the at least one z-wave intelligent control panel and the user terminal, and determining the position information of the user terminal;
and 3, generating a plurality of paths by the main controller according to destination information sent to the main controller by the user terminal, wherein each path consists of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels.
2. The z-wave-based positioning navigation method for intelligent hospitals of claim 1, wherein step 2 specifically comprises steps 2.1-2.2;
step 2.1, sequencing at least one z-wave intelligent control panel according to signal strength information between the at least one z-wave intelligent control panel and a user terminal and the signal strength;
and 2.2, determining the z-wave intelligent control panel with the strongest signal as the position information of the user terminal, wherein the position information can be a three-dimensional vector and comprises two-dimensional coordinate information and floor information.
3. The z-wave based intelligent hospital positioning navigation method according to claim 1, wherein the method further comprises step 4;
and 4, determining a unique path according to the communication connection quantity of the z-wave intelligent control panel in the paths, wherein the communication connection quantity is the quantity of user terminals connected with the z-wave intelligent control panel.
4. The positioning navigation method of the intelligent hospital based on z-wave according to claim 3, wherein the step 4 specifically comprises the steps 4.1-4.2;
step 4.1, respectively calculating people stream dense values of the paths;
and 4.2, selecting a path with the minimum people stream density value, and determining the path as a unique path.
5. The z-wave based intelligent hospital positioning navigation method according to claim 4, wherein the people stream density value of the first path is as follows:
the number of the road segments is the number of the road segments of the first path, the length of the first road segment of the first path is represented, and the number of the connections of the z-wave intelligent control panel associated with the first node and the number of the communication connections of the z-wave intelligent control panel associated with the first node in the first path are represented respectively.
6. The z-wave-based intelligent hospital positioning navigation method according to claim 3, further comprising steps 5 to 6;
step 5, when the user walks according to the unique path, the main controller acquires the maximum value of the signal intensity information between the z-wave intelligent control panel and the user terminal in real time, and the number of the z-wave intelligent control panel corresponding to the maximum value;
and 6, judging whether the user walks according to the unique path by the main controller according to the maximum value and the z-wave intelligent control panel number corresponding to the maximum value, and if not, sending an error walking prompt to the user terminal.
7. A z-wave based positioning navigation system for performing a z-wave based positioning navigation method of a smart hospital according to any one of claims 1 to 6, the system comprising: the system comprises a main controller, a plurality of z-wave intelligent control panels and a user terminal;
the user terminal is used for establishing connection between the user terminal and a main controller of the Internet of things of the hospital, wherein the user terminal is connected with the main controller through at least one z-wave intelligent control panel;
the main controller is used for acquiring the position information of the at least one z-wave intelligent control panel and the signal intensity information between the main controller and the user terminal, and determining the position information of the user terminal;
the main controller is used for generating a plurality of paths according to destination information sent to the main controller by the user terminal, wherein each path consists of at least one road section, and 2 nodes of each road section are respectively associated with 2 z-wave intelligent control panels.
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