CN112986910A - Positioning method and device for medical equipment, electronic equipment and storage medium - Google Patents
Positioning method and device for medical equipment, electronic equipment and storage medium Download PDFInfo
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- 238000004422 calculation algorithm Methods 0.000 claims description 7
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- 238000012549 training Methods 0.000 claims description 7
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/04—Position of source determined by a plurality of spaced direction-finders
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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Abstract
The embodiment of the invention provides a positioning method and device for medical equipment, electronic equipment and a storage medium, wherein the positioning method and device for the medical equipment comprise the following steps: acquiring the position information of an AP (access point); acquiring the signal intensity of the medical equipment in real time; and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time. The embodiment can accurately and conveniently determine the position of the medical equipment in the using process in real time.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a positioning method and apparatus for medical equipment, electronic equipment, and a storage medium.
Background
With the development of medicine, medical equipment is more and more widely applied. Some existing positioning systems cannot be applied to medical equipment, for example, a positioning scheme based on a geostationary satellite cannot be realized indoors at present; positioning based on the position of the base station requires a plurality of base stations nearby in the use environment, so that the medical equipment is very inconvenient to find the position in the use process.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a positioning method and apparatus for a medical device, an electronic device, and a storage medium.
In a first aspect, an embodiment of the present invention provides a positioning method for a medical device, including:
acquiring the position information of an AP (access point);
acquiring the signal intensity of the medical equipment in real time;
and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
Further, the determining the current location information of the medical device based on the location information of the wireless access point AP and the signal strength acquired in real time specifically includes:
and determining the current position information of the medical equipment by adopting a trigonometric function based on the position information of the wireless access point AP and the signal intensity acquired in real time.
Further, the determining, by using a trigonometric function, the current location information of the medical device based on the location information of the wireless access point AP and the signal strength acquired in real time specifically includes:
converting the signal intensity acquired in real time into distance information between the medical equipment and the wireless access point AP based on the position information of the wireless access point AP;
and determining the current position information of the medical equipment by adopting a trigonometric function according to the distance information.
Further, still include:
inputting the position information of the wireless access point AP and the signal intensity acquired in real time into a positioning calculation model to obtain the current position information of the medical equipment;
the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and using position information corresponding to the signal strength as output data.
Further, there are two or more pieces of location information of the wireless access point AP.
In a second aspect, an embodiment of the present invention provides a positioning apparatus for a medical device, including:
the acquisition module is used for acquiring the position information of the wireless access point AP;
the acquisition module is used for acquiring the signal intensity of the medical equipment in real time;
and the determining module is used for determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
Further, the determining module is specifically configured to:
and determining the current position information of the medical equipment by adopting a trigonometric function based on the position information of the wireless access point AP and the signal intensity acquired in real time.
Further, still include: a second determination module;
the second determining module is used for inputting the position information of the wireless access point AP and the signal intensity acquired in real time into a positioning calculation model to obtain the current position information of the medical equipment;
the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and using position information corresponding to the signal strength as output data.
In a third aspect, embodiments of the present invention further provide an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the steps of the positioning method for a medical device according to the first aspect.
In a fourth aspect, the embodiments of the present invention also provide a non-transitory computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the positioning method for a medical device as described in the first aspect above.
As can be seen from the foregoing technical solutions, the positioning method, the positioning device, the electronic device, and the storage medium for medical devices according to the embodiments of the present invention obtain location information of the wireless access point AP; acquiring the signal intensity of the medical equipment in real time; and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time, so that the position of the medical equipment in the using process can be accurately and conveniently determined in real time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a positioning method for a medical device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an AP coverage area of a wireless access point according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of determining current location information of a medical device using trigonometric functions according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a positioning apparatus B according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a positioning device C according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a positioning apparatus a according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a positioning apparatus for a medical device according to an embodiment of the present invention;
fig. 8 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The positioning method for a medical device according to the present invention will be explained and explained in detail by specific embodiments.
Fig. 1 is a schematic flow chart of a positioning method for a medical device according to an embodiment of the present invention; as shown in fig. 1, the method includes:
step 101: and acquiring the position information of the wireless access point AP.
In this step, it can be understood that the wireless access point AP having known location information in the coverage of the WIFI signal is added to the medical device, and the location information of the wireless access point AP is obtained by obtaining the signal.
Step 102: the signal strength of the medical device is acquired in real time.
In this step, it can be understood that, for example, the signal strength which can be searched by the current medical device is scanned in the medical device through the WIFI module.
Step 103: and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
In this step, referring to fig. 2, the rings represented by a, B, C, D, and e in fig. 2 all represent the coverage area of the wireless access point AP, when the medical device A, B, C is located at three different positions, the position information of each wireless access point AP (i.e., the position of each AP) is known, the signal strength of the medical device a, B, or C is known, the distances D1, D2, and D3.
As can be seen from the above technical solutions, the positioning method for medical equipment provided by the embodiment of the present invention obtains the location information of the wireless access point AP; acquiring the signal intensity of the medical equipment in real time; and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time, so that the position of the medical equipment in the using process can be accurately and conveniently determined in real time.
On the basis of the foregoing embodiment, in this embodiment, the determining the current location information of the medical device based on the location information of the wireless access point AP and the signal strength acquired in real time specifically includes:
and determining the current position information of the medical equipment by adopting a trigonometric function based on the position information of the wireless access point AP and the signal intensity acquired in real time.
In this embodiment, a trigonometric function (also called a "circle function") is a function of an angle, and the trigonometric function is generally defined as a ratio of two sides of a right triangle including the angle, and may be equivalently defined as lengths of various line segments on a unit circle.
For a better understanding of the embodiments of the present invention, the following are exemplified:
referring to fig. 3, in fig. 3, a denotes the AP1 position, B denotes the AP2 position, the left half dotted circle denotes the coverage of the AP1, and the left half solid circle denotes a possible position trajectory calculated from the signal strength with respect to the AP1 position. The right half dashed circle is the coverage area of AP2 and the right half solid circle represents a possible location trajectory calculated from signal strength 2 relative to AP 2. The intersection points C and D of the two solid circles are the actual positions of the medical devices at present.
When AP position information is acquired, the coordinate (X) of the position A is knowna,Ya) And B position coordinates (X)b,Yb)；
When the signal strength of the AP1 is acquired, the radius r of the solid line circle in the left half is knownaThe signal strength of the AP2 is obtained, i.e., the radius r of the known right half solid line circleb
Setting the AB distance as c and CAB as A, wherein
From trigonometric relationships
∠CAO＝∠BAO+∠A
Yc＝Ya+ra×sin∠CAO
Xc＝Xa+ra×cos∠CAO
∠DAO＝∠BAO--∠DAB＝∠BAO--∠A
Yd＝Ya+ra×sin∠DAO
Xd＝Xa+ra×cos∠DAO。
On the basis of the foregoing embodiment, in this embodiment, the determining, by using a trigonometric function, the current location information of the medical device based on the location information of the wireless access point AP and the signal strength acquired in real time specifically includes:
converting the signal intensity acquired in real time into distance information between the medical equipment and the wireless access point AP based on the position information of the wireless access point AP;
determining the current position information of the medical equipment by adopting a trigonometric function according to the distance information; wherein the trigonometric function is (X)n-Xα)2+(Yn-Yα)2＝Dn 2；XnAnd YnIndicating location information of a wireless access point AP, DnIndicating distance information, XαAnd YαRepresenting the current location information of the medical device.
In this embodiment, referring to fig. 4, a medical device B is covered by two wireless access points a and e, the position information of each wireless access point AP is known, when the transmission power is not changed, the signal strength acquired in real time is converted into the distance information between the medical device and the wireless access point AP, and the current position information of the medical device is determined by using a trigonometric function according to the distance information.
In this embodiment, referring to fig. 5, the medical device C is covered by three wireless access points a, b, and e, the position information of each wireless access point AP is known, when the transmission power is not changed, the signal strength acquired in real time is converted into the distance information between the medical device and the wireless access point AP, and the current position information of the medical device is determined by using a trigonometric function according to the distance information.
In this embodiment, referring to fig. 6, a medical device a is covered by five wireless access points a, b, c, d, and e, location information of each wireless access point AP is known, and when transmission power is not changed, signal strength acquired in real time is converted into distance information between the medical device and the wireless access point AP, and current location information of the medical device is determined by using a trigonometric function according to the distance information.
In this embodiment, it should be noted that, referring to fig. 4 to fig. 6, it can be seen that the more the wireless access points AP are, the more the position information can be calculated, and when the transmission power is not changed, the lower the signal strength of the more obstacles are crossed, the larger the calculation error is, so that when calculating the position under multiple APs, the higher the signal strength (short distance) is used instead of the lower signal strength (long distance or obstacle crossing value is used for calculation, that is, the more the wireless access points AP are, the higher the calculation accuracy is, thereby obtaining more accurate current position information.
On the basis of the above embodiment, in this embodiment, the method further includes:
inputting the position information of the wireless access point AP and the signal intensity acquired in real time into a positioning calculation model to obtain the current position information of the medical equipment;
the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and using position information corresponding to the signal strength as output data.
In this embodiment, the current position information of the medical device is determined according to a trained positioning calculation model, where the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and position information corresponding to signal strength as output data.
On the basis of the above embodiments, in this embodiment, there are two or more pieces of location information of the wireless access point AP.
In this embodiment, it should be noted that, for the position where the wireless access point AP is installed to a great extent, the wall body needs to be bypassed, firstly, regarding to the signal, in the case that the signal crosses the box body and the wall body, the quality of the signal may be significantly reduced, so that the position of the wireless access point AP device needs to be controlled well, and meanwhile, the network signal may encounter a reinforced concrete material in the process of crossing the wall body, and the material itself may generate a certain coupling effect under the electromagnetic effect, and the strength of the signal may be reduced intangibly, so that the strength of the signal transmitted again is greatly weakened, and when the number of APs is greater, the calculation distance difference caused by the signal strength attenuation may be smaller, and therefore, the more the wireless access points AP may calculate more accurate position information.
On the basis of the embodiment, the portable medical equipment or the mobile medical equipment is in an open air environment, and the positioning is carried out by using the position based on the GPS, the Beidou and other synchronous satellites.
According to the technical scheme, the positioning method for the medical equipment provided by the embodiment of the invention provides omnibearing positioning in medical product application.
Fig. 7 is a schematic structural diagram of a positioning apparatus for a medical device according to an embodiment of the present invention, as shown in fig. 7, the apparatus includes: an acquisition module 201, an acquisition module 202, and a determination module 203, wherein:
the acquiring module 201 is configured to acquire location information of an AP;
the acquisition module 202 is used for acquiring the signal intensity of the medical equipment in real time;
a determining module 203, configured to determine current location information of the medical device based on the location information of the wireless access point AP and the signal strength acquired in real time.
On the basis of the foregoing embodiment, in this implementation, the determining module is specifically configured to:
and determining the current position information of the medical equipment by adopting a trigonometric function based on the position information of the wireless access point AP and the signal intensity acquired in real time.
On the basis of the above embodiment, in this embodiment, the method further includes: a second determination module;
the second determining module is used for inputting the position information of the wireless access point AP and the signal intensity acquired in real time into a positioning calculation model to obtain the current position information of the medical equipment;
the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and using position information corresponding to the signal strength as output data.
The positioning apparatus for medical equipment provided in the embodiment of the present invention may be specifically used for executing the positioning method for medical equipment in the above embodiment, and the technical principle and the beneficial effects thereof are similar, and reference may be specifically made to the above embodiment, and details are not described here.
Based on the same inventive concept, an embodiment of the present invention provides an electronic device, and referring to fig. 8, the electronic device specifically includes the following contents: a processor 301, a communication interface 303, a memory 302, and a communication bus 304;
the processor 301, the communication interface 303 and the memory 302 complete mutual communication through the communication bus 304; the communication interface 303 is used for realizing information transmission between related devices such as modeling software, an intelligent manufacturing equipment module library and the like; the processor 301 is used for calling the computer program in the memory 302, and the processor executes the computer program to implement the method provided by the above method embodiments, for example, the processor executes the computer program to implement the following steps: acquiring the position information of an AP (access point); acquiring the signal intensity of the medical equipment in real time; and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
Based on the same inventive concept, yet another embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, is implemented to perform the methods provided by the above method embodiments, for example, acquiring location information of a wireless access point AP; acquiring the signal intensity of the medical equipment in real time; and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
In addition, in the present invention, terms such as "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Moreover, in the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Furthermore, in the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A positioning method for a medical device, comprising:
acquiring the position information of an AP (access point);
acquiring the signal intensity of the medical equipment in real time;
and determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
2. The positioning method for medical equipment according to claim 1, wherein the determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time specifically comprises:
and determining the current position information of the medical equipment by adopting a trigonometric function based on the position information of the wireless access point AP and the signal intensity acquired in real time.
3. The positioning method for medical equipment according to claim 2, wherein the determining the current position information of the medical equipment by using a trigonometric function based on the position information of the wireless access point AP and the signal strength acquired in real time specifically comprises:
converting the signal intensity acquired in real time into distance information between the medical equipment and the wireless access point AP based on the position information of the wireless access point AP;
determining the current position information of the medical equipment by adopting a trigonometric function according to the distance information; wherein, the threeThe angular function is (X)n-Xα)2+(Yn-Yα)2＝Dn 2；XnAnd YnIndicating location information of a wireless access point AP, DnIndicating distance information, XαAnd YαRepresenting the current location information of the medical device.
4. The positioning method for a medical device according to claim 1, further comprising:
inputting the position information of the wireless access point AP and the signal intensity acquired in real time into a positioning calculation model to obtain the current position information of the medical equipment;
the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and using position information corresponding to the signal strength as output data.
5. The positioning method for medical equipment according to any one of claims 1 to 4, wherein the position information of the wireless access point AP is two or more.
6. A positioning device for a medical apparatus, comprising:
the acquisition module is used for acquiring the position information of the wireless access point AP;
the acquisition module is used for acquiring the signal intensity of the medical equipment in real time;
and the determining module is used for determining the current position information of the medical equipment based on the position information of the wireless access point AP and the signal strength acquired in real time.
7. The positioning device for a medical apparatus according to claim 6, wherein the determination module is specifically configured to:
and determining the current position information of the medical equipment by adopting a trigonometric function based on the position information of the wireless access point AP and the signal intensity acquired in real time.
8. The positioning device for a medical apparatus of claim 6, further comprising: a second determination module;
the second determining module is used for inputting the position information of the wireless access point AP and the signal intensity acquired in real time into a positioning calculation model to obtain the current position information of the medical equipment;
the positioning calculation model is obtained by training based on a machine learning algorithm by using position information sample data and signal strength sample data of the wireless access point AP as input data and using position information corresponding to the signal strength as output data.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements a localization method for a medical device as claimed in any one of claims 1 to 5.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements a localization method for a medical device according to any one of claims 1 to 5.
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Application publication date: 20210618 |