A target finding method in hospitals based on medical wristbands

Abstract

The application relates to a hospital target searching method based on medical wristbands, which comprises the following steps: an operation terminal sends a searching signal; active wristbands receive and broadcast the searching signal; a plurality of active wristbands transmit the searching signal until the searching signal reaches a target wristband; the target wristband sends a feedback signal to a responding wristband point by point; each responding wristband receives the feedback signal and sends a return signal to the operation terminal based on the feedback signal; and the operation terminal integrates the return signals to obtain target wristband position information. The application has the advantages that the scheme realizes the determination of the approximate position of a lost patient by using small signal strength through the communication between small-power medical wristbands. The signal is transmitted through the medical wristbands with small power, the signal strength is small, the propagation distance is short, and the influence of the signal transmission process on the precision instruments of the hospital can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a hospital target finding method based on medical wristbands. BACKGROUND

[0002] Currently, the inpatient department of a hospital usually adopts a broadcasting method to find a lost patient, which not only easily disturbs patients and patient families in the ward, but also has low efficiency, and the success rate of the above-mentioned broadcasting method is also greatly reduced for patients with certain mental diseases.

[0003] In order to improve the efficiency and success rate of finding a lost patient in the inpatient department, currently available related technologies include using a positioning system to monitor the position of a specific patient or the position of each patient in real time, so as to find a lost patient who is not in a designated ward area by using the positioning system.

[0004] Although this method achieves automatic finding and accurate positioning, there are many precise devices in a hospital, and the more precise the instrument is, the more stable the working voltage and working current are required, and sudden peak voltage and peak current will affect the service life and precision of the device, therefore, generally, electronic devices are not allowed to send high-power signals. For example, electroencephalogram, monitor, ultrasonic diagnostic instrument or nuclear magnetic resonance instrument, which are directly in contact with the human body, especially instruments for detecting human bioelectric signals. Since the human bioelectric signal is very weak, when it is disturbed, a distortion similar to some pathological changes will be superimposed on the detection result (such as waveform, pattern, image), causing misdiagnosis. Some can also cause microshock, and in severe cases, there is a risk to life. If it is a medical instrument with a computer system, when the peak interference amplitude in common mode interference reaches 2V-50V and the time lasts for several microseconds, computer logic errors, information loss, etc. can be caused.

[0005] However, the inpatient department of a hospital usually wears a medical wristband on the wrist and carries it with them until they are discharged, and the battery of the medical wristband is small, has low power, short communication distance and weak communication signal, therefore, the medical wristband becomes a better carrier to solve the above-mentioned problems, at the same time, the medical wristband usually has a fixed number, and the number contains the information of the ward, floor and ward.

[0006] In view of the above situation and based on the characteristics of the above-mentioned medical wristband, the present application proposes a hospital target finding method based on medical wristbands, which uses a small-power medical wristband to improve the success rate of finding a lost patient in the inpatient department of a hospital. SUMMARY

[0007] In order to improve the success rate of finding the lost patients in the hospital inpatient area by using the low-power medical wristband, the application provides a hospital target finding method based on the medical wristband.

[0008] The application provides a hospital target finding method based on the medical wristband, which adopts the following technical scheme:

[0009] A hospital target finding method based on the medical wristband comprises the following steps:

[0010] The operation terminal sends a search signal, wherein the search signal carries target wristband information;

[0011] The active wristband receives and broadcasts the search signal, wherein the active wristband comprises wristbands within the search signal coverage range near the operation terminal;

[0012] The active wristbands transmit the search signal until the search signal reaches the target wristband, wherein the active wristband further comprises wristbands within the search signal coverage range near the adjacent active wristband, and the target wristband is the wristband used by the person being searched;

[0013] The target wristband sends a feedback signal to the response wristband point-to-point, wherein the response wristband is the wristband within the search signal coverage range near the target wristband;

[0014] The response wristband receives the feedback signal and sends a return signal to the operation terminal based on the feedback signal, wherein the return signal carries the wristband information of the response wristband;

[0015] The operation terminal integrates the return signal to obtain the target wristband position information.

[0016] By adopting the above technical scheme, the searcher can use the operation terminal to send a search signal to the active wristband near the operation terminal. The search signal is a signal carrying the searched person's number information, and the searched person's number includes the ward number, floor number, room number, etc. corresponding to the searched person. The active wristbands are all wristbands within the specified range that can receive the search signal. The specified range is specified according to the room area and floor height, and is suitable for the range of the maximum signal transmission distance.

[0017] Next, the active wristband receives the search signal, and the search signal is transmitted within the inpatient department through several active wristbands. When a certain active wristband is within the specified range around the target wristband worn by the searched person, the active wristband can be marked as the response wristband, and the target wristband can receive the search signal.

[0018] When the target wristband receives the missing person signal, it will immediately send a feedback signal to the corresponding responding wristband. This process is a point-to-point communication process. Subsequently, when the responding wristband receives the feedback signal, it can determine that the target wristband has been found. At this time, the responding wristband will no longer continue to broadcast the above-mentioned missing person signal as an active wristband. Instead, the signal generator will generate a return signal that matches its own information and send the return signal to the operation terminal. The return signal carries the wristband information of the responding wristband, that is, the ward, floor, and room information of the person wearing the target wristband. Therefore, by integrating the wristband information of several responding wristbands, the approximate location information of the target wristband can be obtained, and thus the approximate location information of the person being sought can be obtained.

[0019] In summary, this solution uses low-power communication between medical wristbands to determine the approximate location of a missing patient using minimal signal strength. Furthermore, because the signal is transmitted and received via the wristbands worn by inpatients, this solution is less disturbing to the patients than methods using voice broadcasts to locate them.

[0020] More importantly, since the signal is transmitted through a low-power medical wristband, and the signal strength is low and the propagation distance is short, compared with the automatic precise positioning system, this solution can greatly reduce the impact of the signal transmission process on the hospital's precision instruments.

[0021] Similarly, since this solution uses the medical wristbands of hospitalized patients to complete the communication process, not only does it have fewer types of intermediate devices, but it can also make full use of existing resources. Compared with the automatic and precise positioning system, it can not only meet the basic requirements of finding people, but also significantly reduce costs, avoid cost waste, and is more conducive to its popular use in grassroots hospitals.

[0022] Optionally, the step of the response wristband receiving the feedback signal and sending a return signal to the operation terminal based on the feedback signal, and the step of the operation terminal integrating the return signal to obtain the target wristband position information further includes the following steps:

[0023] The responding wristband broadcasts a confirmation signal, wherein the confirmation signal is used to confirm whether the responding wristband is in the required position;

[0024] The authentication wristband receives the confirmation signal and sends an authentication signal to the operation terminal based on the confirmation signal, wherein the authentication wristband is a wristband within the coverage range of the confirmation signal near the response wristband, and the authentication signal carries the authentication wristband information and the response wristband information corresponding to the authentication wristband;

[0025] The step of integrating the return signal by the operation terminal to obtain the target wristband position information includes the step of integrating the return signal and the authentication signal by the operation terminal to obtain the target wristband position information.

[0026] By adopting the technical scheme, considering the personnel distribution characteristics of the hospital inpatient department, most patients are usually stable in their corresponding wards, and a small number of patients will move to other wards or even other floors. The above scheme can utilize this feature to determine whether the responding wristband is located in the ward where it should be, i.e., whether the person in the specified range near the sought person is located in the ward where he / she should be.

[0027] The specific process is that when the active wristband receives the feedback signal, the active wristband is marked as a responding wristband. At this time, the responding wristband will broadcast a confirmation signal, which can help find the wristband in the specified range near the responding signal, i.e., the above-mentioned authentication wristband. As described above, if a responding wristband is located in the ward where it should be, the wristbands in the specified area near the responding wristband should also be worn by patients in the same ward, i.e., the information carried by them, including the ward area, floor and ward, etc. should be the same. Thus, it can be determined whether the responding wristband is located in the ward where it should be.

[0028] Through this scheme, the authentication wristband information for determining the effectiveness of the responding wristband can be integrated into the determination result, further improving the accuracy of the determination result.

[0029] Optionally, the active wristband only receives the same search signal once and broadcasts the received same search signal once.

[0030] By adopting the above technical scheme, since the signal transmission is fast, the moving speed of the active wristband can be ignored for the same search information. Because the population density of the hospital inpatient department is large, different active wristbands will probably broadcast the same signal to the same active signal, which will result in a large number of invalid signal receiving processes, and further result in invalid signal broadcasting, reducing the endurance time of the wristband and the transmission efficiency of the signal. Therefore, by stipulating that the active wristband only receives the same search signal in sequence, the number of signal transmissions can be reduced, and the efficiency of signal transmission can be improved.

[0031] Optionally, the step of the operation terminal integrating the return signal to obtain the target wristband position information comprises:

[0032] By reading the information carried by the return signal, the floor where the responding wristband is located is determined, and the floor where the target wristband is located is determined.

[0033] If the responding wristband is distributed on the floor where the target wristband should be located, it is determined that the target wristband is on the floor where it should be located.

[0034] If the responding wristband is not on the floor where the target wristband should be located, the floor characteristics of the responding wristband distribution are continued to be analyzed.

[0035] If the response wristband is distributed on the bottom layer and the layer above the bottom layer, the target wristband is determined to be on the bottom layer;

[0036] If the response wristband is distributed on the top layer and the layer below the top layer, the target wristband is determined to be on the top layer;

[0037] If the response wristbands are distributed on three different floors, the target wristband is determined to be located in the middle of the three floors;

[0038] If the response wristbands are distributed on two different floors in the middle position, the target wristband is determined to be on the floor with more response wristbands;

[0039] If the response wristbands are distributed on one floor, it is determined that the target wristband is located on the floor;

[0040] By reading the information carried by the return signal, the room where the responding wristband is located is determined, and thus the room where the target wristband is located is determined;

[0041] If the response wristband is located near the room where the target wristband should be, then the target wristband is determined to be in the room where it should be.

[0042] If the response wristbands are located in the two most peripheral rooms, the target wristband is determined to be located in the most peripheral room.

[0043] If the response wristbands are distributed in the three middle rooms, then the target wristband is determined to be in the middle room of the three rooms;

[0044] If the response wristbands are distributed in the two middle rooms, the target wristband is determined to be in the room with more response wristbands;

[0045] If the response wristband is distributed in a middle room, it is determined that the target wristband is located in the room.

[0046] By adopting the above technical solution, when integrating the return signal to determine the location of the target wristband, it is divided into two main steps. The first step is to determine the floor and room where the target wristband is located. The main judgment idea is: if the target wristband is located on the top or bottom floor, and the maximum distance that the missing person signal can be transmitted is less than the height of a floor, then the response wristband will only be distributed on the top or bottom two floors. Similarly, when determining the room where the target wristband is located, the maximum distance that the missing person signal can be transmitted is less than the length of a room. If the target wristband is located in the outermost room of the determined floor, then the response wristband will be located in the two outermost rooms.

[0047] If the target wristband is located on the middle floor, the response wristbands will be distributed in the three adjacent floors. In this case, it can be determined that the target wristband is located on the middle floor among the above three floors. Similarly, the same is true for the judgment of the room.

[0048] Optionally, the step of integrating the return signal and the authentication signal by the operation terminal to obtain the target wristband location information includes:

[0049] By reading the information carried by the authentication signal, it is determined whether the authentication wristbands corresponding to the response wristband belong to the same area wristbands;

[0050] If it is determined that several authentication wristbands corresponding to the response wristband belong to the same area wristbands, then the response wristband is determined to be a valid response wristband;

[0051] If it is determined that the multiple authentication wristbands corresponding to the response wristband do not belong to the same area wristbands, the response wristband is determined to be an invalid response wristband;

[0052] The return signals corresponding to the valid response wristbands are added to the step of integrating the return signals, and the invalid response wristbands are removed from the step of integrating the return signals.

[0053] Optionally, the step of the response wristband receiving the feedback signal and sending a return signal to the operation terminal based on the feedback signal includes:

[0054] The responding wristband broadcasts a return signal, wherein the return signal carries wristband information of the responding wristband;

[0055] The active wristband receives the return signal;

[0056] Several active wristbands transmit return signals until the operation terminal receives the return signals.

[0057] By adopting the above technical solution, when the responding wristband receives the feedback signal, the return signal will be transmitted back to the operation terminal through several active wristbands. The return signal will provide the operation terminal with information such as the ward, floor and ward number corresponding to the responding wristband, which is used to integrate the information near the target wristband. This method has the advantages of simple transmission process and low cost.

[0058] Optionally, the step of the response wristband receiving the feedback signal and sending a return signal to the operation terminal based on the feedback signal includes:

[0059] The responding wristband sends a return signal point-to-point to the active wristband that sends the missing person signal to the responding wristband;

[0060] Several active wristbands transmit return signals point-to-point until the operation terminal receives the return signals.

[0061] By adopting the technical scheme, when the wristband responds to the feedback signal, the feedback signal is returned to the operation terminal through a point-to-point mode, in which the active wristbands through which the feedback signal passes are the active wristbands through which the search signal passes in the previous process, and the feedback signal does not need to be transmitted to more active wristbands through broadcasting, so that the number of times of signal transmission and the number of wristbands involved can be reduced, and since the transmission speed of the signal is fast, the movement of the wristband can be generally ignored, so that the possibility of the signal transmission line being lengthened or broken is small, and the transmission efficiency of the signal can be improved.

[0062] Optionally, the step that the authentication wristband receives the confirmation signal and sends the authentication signal to the operation terminal based on the confirmation signal comprises:

[0063] The authentication wristband broadcasts the authentication signal, and the authentication signal carries wristband information of the authentication wristband.

[0064] The active wristband receives the authentication signal.

[0065] The authentication signal is transmitted by the active wristbands until the operation terminal receives the authentication signal.

[0066] In summary, the present application has at least one of the following beneficial technical effects:

[0067] 1. The present application realizes the determination of the approximate position of the lost patient by the communication between the low-power medical wristbands.

[0068] 2. Compared with the method of using sound broadcasting to search for the lost patient, the present application does not produce sound and other actions that can be perceived by the patient, and thus does not have a negative impact on the hospitalized patient.

[0069] 3. The signal is transmitted by the medical wristband with small power, and the signal strength is small and the propagation distance is short, so compared with the automatic precise positioning system, the present application can greatly reduce the influence of the signal transmission process on the precision instruments in the hospital.

[0070] 4. The number of intermediate devices is small, and the existing resources can be fully utilized, so compared with the automatic precise positioning system, the cost can be greatly reduced on the basis of meeting the basic search requirements, the problem of cost waste is avoided, and the popularization and use of the primary hospital are more beneficial.

[0071] 5. The authentication wristband information for judging the effectiveness of the response wristband can be integrated into the determination result, and the determination result is further accurate.

[0072] 6. The active wristband only receives the same search signal once, which can reduce the number of signal transmissions and improve the efficiency of signal transmission.

[0073] 7. The active wristbands that the return signal passes through are the active wristbands that the person-searching signal passed through in the previous process. There is no need to transmit the return signal to more active wristbands through broadcasting, thereby reducing the number of signal transmission times and the number of wristbands involved. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 Used to illustrate the signal transmission relationship of a target finding method in a hospital based on a medical wristband.

[0075] Figure 2 Used to show the distribution of multiple wristbands on different floors and in different rooms, as well as the signal transmission paths generated by wristband communication.

[0076] Figure 3 This is a flowchart of the steps of a target search method in a hospital based on a medical wristband in an embodiment of the present application.

[0077] Figure 4 This is a flowchart of the steps of a specific implementation method A of S5 of a target finding method in a hospital based on a medical wristband in an embodiment of the present application.

[0078] Figure 5 This is a flowchart of the steps of a specific implementation method B of S5 of a target finding method in a hospital based on a medical wristband in an embodiment of the present application.

[0079] Figure 6 This is a schematic diagram of the positional relationship between a response wristband and an authentication wristband in a target finding method within a hospital based on a medical wristband in an embodiment of the present application.

[0080] Figure 7 This is a flowchart of the specific implementation steps of S7 of a target search method in a hospital based on a medical wristband in an embodiment of the present application.

[0081] Figure 8 This is a flow chart of the integrated judgment process of a target finding method in a hospital based on a medical wristband in an embodiment of the present application.

[0082] Figure 9 This is a flowchart of a target search method in a hospital based on a medical wristband in an embodiment of the present application for determining the floor where the target wristband is located.

[0083] Figure 10 This is a flowchart of a target search method in a hospital based on a medical wristband in an embodiment of the present application for determining the room where the target wristband is located.

[0084] Figure 11 This is a flowchart of a method for finding a target in a hospital based on a medical wristband and processing a response wristband in an embodiment of the present application. DETAILED DESCRIPTION

[0085] The present application is further described in detail by reference to the following drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not intended to limit the scope of the application.

[0086] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the inventive concept. As part of the description, some of the diagrams in the present disclosure are represented in block diagram form to avoid complicating the disclosed principles. Not all features of a practical implementation are necessarily described or implied. Also, the language used in the present disclosure has been principally selected for readability and instructional purposes and can not have been selected to delineate or circumscribe the inventive subject matter, resort to the claims being necessary to determine such an inventive subject matter. Reference in the specification to "one implementation" or "an implementation" means that a particular feature, structure, or characteristic described is included in at least one implementation, and multiple references to "one implementation" or "an implementation" do not necessarily all refer to the same implementation.

[0087] The terms "one," "a," and "the" are not intended to refer to singular entities, but include the general class of which a specific example can be used for illustration. The use of the terms "one" or "a" can mean any number of including "one," "one or more," "at least one," and "one or more than one." The term "or" means any one of the alternatives and any combination of the alternatives, including all of the alternatives, unless the alternatives are expressly indicated to be mutually exclusive. The phrase "at least one of" in combination with a list of items is intended to refer to a single item from the list of items or any combination of items from the list of items. The phrase does not require all of the listed items to be present.

[0088] The embodiments of the present application disclose a hospital target finding method based on a medical wristband. Referring to Figure 1 and Figure 2 A hospital target finding method based on a medical wristband, comprising the following steps, as shown in Figure 3

[0089] S1. The operation terminal sends a search signal, wherein the search signal carries target wristband information.

[0090] It should be noted that the lengths of the various line segments in the figure do not represent the floor height, nor the length and width of the room, but only serve as a schematic presentation. Figure 2 In the figure, the oval represents the response wristband, and the inverted triangle represents the target wristband.

[0091] ​The operation terminal is also called a terminal device, is a device at the outermost part of a network in a computer network, and is mainly used for input of user information and output of processing results, etc. The person searching can input the information of the person being searched through the operation terminal, so that the operation terminal sends the above-mentioned searching signal.

[0092] Wristbands are commonly used in the inpatient department of a hospital, and each inpatient will wear a dedicated wristband to facilitate medical staff to check the patient's identity. Usually, medical staff will check the information carried by the wristband in the form of scanning codes, and then obtain the patient's identity information. Specifically, the wristband information includes but is not limited to ward information, floor information and room information, and the above-mentioned information can be stored in the wristband in the form of numbers.

[0093] It is worth mentioning that, due to the large number of people in the inpatient department of the hospital, each patient wears a dedicated wristband, therefore, the spatial distribution of the wristband has particularity and weak mobility, that is, the wristbands of different wards, different floors and different rooms are not randomly arranged, but have a specific distribution rule, and most of the wristbands will be distributed according to this specific rule, which plays a crucial role in finding missing patients.

[0094] In addition, in the use scenario, as a wristband carried by a patient, it has the advantage of long-lasting power supply, which can greatly support the promotion of the search work. It is worth mentioning that the power of the wristband is small, and the strength of the transmitted signal is also small, so its influence on the precision instruments in the hospital is weak, compared with large equipment such as automatic positioning system, using wristband as a relay station for searching signal will be more reliable.

[0095] Specifically, the above-mentioned searching signal is a signal carrying the number information of the person being searched, and the number of the person being searched includes information such as ward number, floor number and room number corresponding to the person being searched. The active wristband is a wristband that can receive the above-mentioned searching signal within a specified range, and the specified range is specified according to the room area and floor height, and is suitable for the range of maximum signal transmission distance. Specifically, the size of the wristband power can be adjusted to adjust the strength and distance of the signal transmission to control the above-mentioned specified range.

[0096] Further specifically, in different embodiments, the above-mentioned specified range can be set to different distances, according to the height difference between floors and the room area integration in different hospitals in actual application, as an example, suitable for a ward with a length of about 5m and a width of about 5m and a height difference between floors of about 3m, the above-mentioned specified distance can be set to 6m. Among them, the farthest distance of the signal transmission in the air can be set to about 8m, after the signal passes through the wall, the signal strength will be attenuated, at this time the farthest distance of the signal transmission will be reduced to about 7m, that is, after the signal passes through twice the wall, the farthest distance of the signal transmission is about 6m. As a supplementary explanation, the floor height of the fireproof layer is not included in the calculation of the above-mentioned signal transmission distance, if the hospital building has a fireproof layer, the signal transmission distance of the wristband in the upper and lower two floors of the fireproof layer needs to be increased on this basis.

[0097] S2. The active wristband receives and broadcasts the missing person signal, wherein the active wristband includes wristbands within the coverage range of the missing person signal near the operating terminal.

[0098] Any wristband has the opportunity to be activated as an active wristband, that is, a signal generator is arranged in the wristband, which can reissue the received missing person signal through decoding and encoding. The specific process is that when the ordinary wristband receives the above-mentioned missing person signal, the signal generator in the ordinary wristband will be awakened, and then the signal generator's forwarding program will complete the work of forwarding the missing person signal.

[0099] S3. The active wristband transmits the missing person signal until the missing person signal is transmitted to the target wristband, wherein the active wristband further includes wristbands within the coverage range of the missing person signal near the adjacent active wristband, and the target wristband is the wristband used by the person being sought.

[0100] The above-mentioned missing person signal is received by the active wristband, and the above-mentioned missing person signal is transmitted in the inpatient department through several active wristbands, when a certain active wristband is located within the above-mentioned specified range around the target wristband worn by the person being sought, the active wristband can be marked as the above-mentioned response wristband, and the target wristband can receive the above-mentioned missing person signal.

[0101] Specifically but not limitedly, the active wristband only receives the same missing person signal once and broadcasts the received same missing person signal once.

[0102] Since the signal transmission is faster, for the same person-seeking information, the active wristband moving speed can be ignored. Moreover, due to the high population density in the hospital inpatient department, different active wristbands will probably broadcast the same signal to the same active signal, which will generate more invalid signal receiving processes, and further cause invalid signal broadcasting, thereby reducing the endurance time of the wristband and the signal transmission efficiency. Therefore, by stipulating that the active wristband only receives in turn for the same person-seeking signal, the number of signal transmission times can be reduced, and the signal transmission efficiency can be improved.

[0103] S4. The target wristband sends a feedback signal to the response wristband in a point-to-point manner, wherein the response wristband is a wristband within the person-seeking signal coverage range near the target wristband.

[0104] When the target wristband receives the person-seeking signal, it will immediately send a feedback signal to the corresponding response wristband. This process is a point-to-point communication process, which is used to confirm that the active wristband as the response wristband is located within the specified range near the target wristband.

[0105] Specifically, the process of activating the active wristband as the response wristband is as follows: when the active wristband receives the feedback signal from the target wristband, the signal generator in the active wristband will decode and analyze the feedback signal, so that the active wristband is activated as the response wristband.

[0106] S5. The response wristband receives the feedback signal and sends a return signal to the operation terminal based on the feedback signal, wherein the return signal carries the wristband information of the response wristband.

[0107] Referring to Figure 4 and Figure 5 , the following two schemes A and B are proposed for the step of sending the return signal to the operation terminal in S5.

[0108] Scheme A includes the following sub-steps S51A-S53A:

[0109] S51A. The response wristband broadcasts the return signal, and the return signal carries the wristband information of the response wristband;

[0110] S52A. The active wristband receives the return signal;

[0111] S53A. The return signal is transmitted by several active wristbands until the operation terminal receives the return signal.

[0112] When the response wristband receives the feedback signal, the return signal will be returned to the operation terminal through several active wristbands. The information such as the ward, floor, and room number corresponding to the response wristband is provided to the operation terminal by the return signal, so as to integrate the information near the target wristband. This method has the advantages of simple transmission process and low cost.

[0113] The following proposes scheme B, which is based on the premise that the active wristbands only receive the same search signal once and broadcast the received same search signal once, and includes the following sub-steps S51B-S52B:

[0114] S51B. The responding wristband sends a feedback signal back to the active wristband that sent the search signal to the responding wristband in point-to-point mode;

[0115] S52B. The active wristbands pass the feedback signal in point-to-point mode until the operating terminal receives the feedback signal.

[0116] When the responding wristband receives the feedback signal, it will pass the feedback signal back to the operating terminal in point-to-point mode. In this method, the active wristbands through which the feedback signal passes are the same as the active wristbands through which the search signal passed in the previous process, and there is no need to pass the feedback signal to more active wristbands through broadcasting, thereby reducing the number of signal transmissions and the number of wristbands involved. Moreover, because the signal transmission speed is fast, the movement of the wristbands can be largely ignored. Therefore, the possibility of signal transmission line being lengthened or broken is also small, and the signal transmission efficiency can be improved.

[0117] S6. The operating terminal integrates the feedback signal to obtain the target wristband position information.

[0118] At this time, the responding wristband will not continue to broadcast the search signal as an active wristband, but will generate a feedback signal matching its own information by the signal generator and send it to the operating terminal. The feedback signal carries the wristband information of the responding wristband, i.e., the ward, floor, and room information of the person wearing the target wristband. Therefore, by integrating the wristband information of several responding wristbands, the approximate position information of the target wristband can be obtained, and the approximate position information of the person being sought can be obtained.

[0119] In summary, this scheme realizes the determination of the approximate position of the lost patient using a small signal strength through the communication between low-power medical wristbands. In addition, because the signal reception and transmission are realized through the medical wristbands worn by the inpatients on their wrists, compared with the method of finding people through sound broadcasting, this scheme does not disturb the inpatients.

[0120] More importantly, because the signal is transmitted through a medical wristband with small power and small signal strength, the propagation distance is short, and therefore, compared with the automatic precise positioning system, this scheme can greatly reduce the impact of the signal transmission process on the precision instruments of the hospital.

[0121] Similarly, since the present scheme uses the medical wristband of the inpatient to complete the communication process, not only the type of intermediate device is less, but also the existing resources can be fully utilized. Compared with the automatic precise positioning system, the cost can be greatly reduced to meet the basic requirements of finding people, avoid the problem of cost waste, and be more conducive to the popularization and use of primary hospitals.

[0122] Referring to Figure 6 , S7. The authentication wristband receives the confirmation signal and sends the authentication signal to the operation terminal based on the confirmation signal, wherein the authentication wristband is a response wristband within the confirmation signal coverage range near the wristband, and the authentication signal carries the authentication wristband information and the response wristband information corresponding to the authentication wristband.

[0123] Considering the personnel distribution characteristics of the hospital inpatient department, usually, most patients will be stable in their corresponding wards, and a small number of patients will move to other wards or even other floors. The above scheme can use this feature to determine whether the response wristband is located in the position it should be in, i.e., whether the person within the specified range near the person being sought is located in the ward he should be in.

[0124] The specific process is that when the active wristband receives the feedback signal, the active wristband is marked as a response wristband. At this time, the response wristband will broadcast a confirmation signal, which can help find the wristband within the specified range near the response signal, i.e., the above-mentioned authentication wristband. As mentioned above, if a response wristband is located in the ward it should be in, the wristbands within the specified area near the response wristband should also be worn by patients in the same ward, i.e., the information they carry, including the ward area, floor, and ward, should be the same. Thus, it can be determined whether the response wristband is located in the ward it should be in.

[0125] Through this scheme, the authentication wristband information for judging the effectiveness of the response wristband can be integrated into the determination result, further improving the accuracy of the determination result.

[0126] Referring to Figure 6 and Figure 7 , for the sending process of the confirmation signal, the present application specifically but not limitedly proposes a method S71-S73 for implementing the sending of the authentication signal by the authentication wristband to the operation terminal in S7, wherein the ellipse represents the response wristband, the pentagon represents the authentication wristband, and the inverted triangle represents the target wristband.

[0127] S71. The authentication wristband broadcasts the authentication signal, and the authentication signal carries the wristband information of the authentication wristband;

[0128] S72. The active wristband receives the authentication signal;

[0129] S73. A number of active wristbands transmit the authentication signal until the operation terminal receives the authentication signal.

[0130] In addition, the backhaul signal transmission scheme described above can also be referred to.

[0131] Referring to Figure 8 , S8. The terminal integrates the backhaul signal to obtain the target wristband position information.

[0132] The present application specifically but not limitedly proposes an integration method for implementing S8, including sub-steps S81-S83.

[0133] Referring to Figure 8 and Figure 9 , S81. By reading the information carried by the backhaul signal, the floor where the response wristband is located is determined, so as to determine the floor where the target wristband is located;

[0134] If the response wristband is distributed on the floor above and below the target wristband's should-be position floor, it is determined that the target wristband is on the should-be floor;

[0135] If the response wristband is not on the floor above and below the target wristband's should-be position floor, the floor characteristics of the response wristband distribution are continued to be analyzed;

[0136] If the response wristband is distributed on the bottommost floor and the floor above the bottommost floor, it is determined that the target wristband is on the bottommost floor;

[0137] If the response wristband is distributed on the topmost floor and the floor below the topmost floor, it is determined that the target wristband is on the topmost floor;

[0138] If the response wristband is distributed on three different floors, it is determined that the target wristband is on the middle floor of the three floors;

[0139] If the response wristband is distributed on two different floors in the middle position, it is determined that the target wristband is on the floor where the response wristband is distributed more;

[0140] If the response wristband is distributed on one floor, it is determined that the target wristband is on the floor.

[0141] Referring to Figure 8 and Figure 10 , S82. By reading the information carried by the backhaul signal, the room where the response wristband is located is determined, so as to determine the room where the target wristband is located;

[0142] If the response wristband is distributed near the target wristband's should-be position room, it is determined that the target wristband is in the should-be room;

[0143] If the response wristband is distributed on the two most edge rooms, it is determined that the target wristband is in the most edge room;

[0144] If the response wristband is distributed on the three middle rooms, it is determined that the target wristband is in the middle room of the three rooms;

[0145] If the response wristbands are distributed in two rooms in the middle, it is determined that the target wristband is in the room where the response wristbands are more distributed;

[0146] If the response wristbands are distributed in one room in the middle, it is determined that the target wristband is in the room.

[0147] In the integration of the return signal, the determination of the position of the target wristband is divided into two main steps, which are to determine the floor and the room where the target wristband is located. The main judgment idea is as follows: if the target wristband is located at the top floor or the bottom floor, and the maximum distance of the search signal that can be transmitted is less than the height of a floor, then the response wristbands will only be distributed in the top two floors or the bottom two floors. Similarly, when determining the room where the target wristband is located, the maximum distance of the search signal that can be transmitted is less than the length of a room. If the target wristband is located in the edge room of the determined floor, the response wristbands will be located in the two edge rooms.

[0148] If the target wristband is located in the middle floor, the response wristbands will be distributed in the adjacent three floors. In this case, it can be determined that the target wristband is located in the middle floor of the above three floors. Similarly, the judgment of the room is also the same.

[0149] Further specifically, for the above-mentioned scheme of using authentication wristbands to determine the effectiveness of response wristbands, the present application specifically but not limitedly proposes an integration method:

[0150] S83. The terminal integrates the return signal and the authentication signal, and then obtains the position information of the target wristband.

[0151] Referring to Figure 8 and Figure 11 , specifically, the present application specifically but not limitedly proposes an integration method for implementing S83, which includes sub-steps S831-S834.

[0152] S831. Determine whether the authentication wristbands corresponding to the response wristbands belong to the same area wristbands by reading the information carried by the authentication signal;

[0153] S832. If it is determined that the authentication wristbands corresponding to the response wristbands belong to the same area wristbands, it is determined that the response wristband is a valid response wristband;

[0154] S833. If it is determined that the authentication wristbands corresponding to the response wristbands do not belong to the same area wristbands, it is determined that the response wristband is an invalid response wristband;

[0155] S834. Add the return signal corresponding to the valid response wristband to the step of integrating the return signal, and remove the invalid response wristband from the step of integrating the return signal.

[0156] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A target finding method in a hospital based on a medical wristband, characterized in that: The following steps are involved: The operating terminal sends a person-searching signal, wherein the person-searching signal carries the target wristband information; The active wristbands receive and broadcast the missing person signal, wherein the active wristbands include wristbands within the coverage range of the missing person signal near the operating terminal; Several active wristbands transmit the missing person signal until the missing person signal is transmitted to the target wristband, wherein the active wristbands also include wristbands within the missing person signal coverage range near the adjacent active wristbands, and the target wristband is the wristband used by the person being searched; The target wristband sends a feedback signal point-to-point to the responding wristband, wherein the responding wristband is a wristband within the coverage range of the search signal near the target wristband; Each responding wristband receives the feedback signal and sends a return signal to the operation terminal based on the feedback signal, wherein the return signal carries the wristband information of the responding wristband; The operation terminal integrates the returned signal to obtain the target wristband location information; The step of the response wristband receiving the feedback signal and sending a return signal to the operation terminal based on the feedback signal, and the step of the operation terminal integrating the return signal to obtain the target wristband position information further includes the following steps: The responding wristband broadcasts a confirmation signal, wherein the confirmation signal is used to confirm whether the responding wristband is in the required position; The authentication wristband receives the confirmation signal and sends an authentication signal to the operation terminal based on the confirmation signal, wherein the authentication wristband is a wristband within the coverage range of the confirmation signal near the response wristband, and the authentication signal carries the authentication wristband information and the response wristband information corresponding to the authentication wristband; The step of integrating the return signal by the operation terminal to obtain the target wristband position information includes: the operation terminal integrating the return signal and the authentication signal, thereby obtaining the target wristband position information; The step of integrating the return signal by the operation terminal to obtain the target wristband position information includes: By reading the information carried by the return signal, the floor on which the responding wristband is located is determined, thereby determining the floor on which the target wristband is located; If the response wristbands are located above or below the target wristband's intended location, the target wristband is determined to be on the intended floor. If the response wristband is not located above or below the target wristband's intended location, continue analyzing the floor characteristics of the response wristband's distribution; If the response wristband is distributed on the bottom layer and the layer above the bottom layer, the target wristband is determined to be on the bottom layer; If the response wristband is distributed on the top layer and the layer below the top layer, the target wristband is determined to be on the top layer; If the response wristbands are distributed on three different floors, the target wristband is determined to be located in the middle of the three floors; If the response wristbands are distributed on two different floors in the middle position, the target wristband is determined to be on the floor with more response wristbands; If the response wristbands are distributed on one floor, it is determined that the target wristband is located on the floor; By reading the information carried by the return signal, the room where the responding wristband is located is determined, and thus the room where the target wristband is located is determined; If the response wristband is located near the room where the target wristband should be, then the target wristband is determined to be in the room where it should be. If the response wristbands are located in the two most peripheral rooms, the target wristband is determined to be located in the most peripheral room. If the response wristbands are distributed in the three middle rooms, then the target wristband is determined to be in the middle room of the three rooms; If the response wristbands are distributed in the two middle rooms, the target wristband is determined to be in the room with more response wristbands; If the response wristband is distributed in a middle room, it is determined that the target wristband is located in the room.

2. The target finding method in a hospital based on a medical wristband according to claim 1, characterized in that: The active wristband receives the same person-searching signal only once and broadcasts the received same person-searching signal once.

3. The method for finding a target in a hospital based on a medical wristband according to claim 2, characterized in that: The step of integrating the return signal and the authentication signal by the operation terminal to obtain the target wristband location information includes: By reading the information carried by the authentication signal, it is determined whether the authentication wristbands corresponding to the response wristband belong to the same area wristbands; If it is determined that several authentication wristbands corresponding to the response wristband belong to the same area wristbands, then the response wristband is determined to be a valid response wristband; If it is determined that the multiple authentication wristbands corresponding to the response wristband do not belong to the same area wristbands, the response wristband is determined to be an invalid response wristband; The return signals corresponding to the valid response wristbands are added to the step of integrating the return signals, and the invalid response wristbands are removed from the step of integrating the return signals.

4. The method for finding a target in a hospital based on a medical wristband according to claim 3, characterized in that: The step of the response wristband receiving the feedback signal and sending a return signal to the operation terminal based on the feedback signal includes: The responding wristband broadcasts a return signal, wherein the return signal carries wristband information of the responding wristband; The active wristband receives the return signal; Several active wristbands transmit return signals until the operation terminal receives the return signals.

5. The method for finding a target in a hospital based on a medical wristband according to claim 4, characterized in that: The step of the response wristband receiving the feedback signal and sending a return signal to the operation terminal based on the feedback signal includes: The responding wristband sends a return signal point-to-point to the active wristband that sends the missing person signal to the responding wristband; Several active wristbands transmit return signals point-to-point until the operation terminal receives the return signals.

6. The method for finding a target in a hospital based on a medical wristband according to claim 5, characterized in that: The steps of the authentication wristband receiving the confirmation signal and sending the authentication signal to the operation terminal based on the confirmation signal include: The authentication wristband broadcasts an authentication signal, wherein the authentication signal carries wristband information of the authentication wristband; The active wristband receives the authentication signal; Several active wristbands transmit authentication signals until the operation terminal receives the authentication signal.

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