CN113096358A - Patient nursing auxiliary system based on Internet of things - Google Patents
Patient nursing auxiliary system based on Internet of things Download PDFInfo
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- CN113096358A CN113096358A CN202110380276.7A CN202110380276A CN113096358A CN 113096358 A CN113096358 A CN 113096358A CN 202110380276 A CN202110380276 A CN 202110380276A CN 113096358 A CN113096358 A CN 113096358A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/12—Manually actuated calamity alarm transmitting arrangements emergency non-personal manually actuated alarm, activators, e.g. details of alarm push buttons mounted on an infrastructure
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Abstract
The invention discloses a patient nursing auxiliary system based on the Internet of things, which comprises an answering system and a calling terminal. The calling terminal is provided with a urgency detection module for identifying the state of pressing the calling key and an internet of things detection terminal for monitoring the states of the patient and the environment. When the calling key is detected to be continuously pressed and the time interval between two times of pressing the key is less than the continuous threshold Tc, the high-level calling state is sent at the moment. When the call key is pressed alone, the normal level call state is transmitted at this time. When the calling key is in a long-time pressing state or in a discontinuous pressing state and the key is not triggered, the confirmation calling state is sent. The invention can identify the requirements of the patient in real time, judge whether the patient needs to carry out urgent nursing operation, and arrange the corresponding nurse or nearby nurses to carry out nursing on the patient, thereby improving the nursing efficiency, improving the quality of nursing service and reducing the probability of the patient having critical conditions caused by untimely nursing.
Description
Technical Field
The invention relates to the technical field of medical communication, in particular to a patient nursing auxiliary system based on the Internet of things.
Background
With the continuous development of the medical and health industry, the intellectualization degree and the informatization degree of hospitals are gradually improved, the medical system is gradually perfected, and the application of the hospital nursing calling system is more and more extensive. In the prior art, a nursing calling system includes a management host and nursing calling devices disposed at various places of a hospital and respectively connected to the management host. When a patient needs the nursing calling device, a calling request can be initiated through the nursing calling device at the patient, after the management host receives the calling request, the source of the calling request is judged, calling information is sent to other nursing calling devices, the calling information comprises the source of the calling request, and after the other nursing calling devices receive the calling information, the source of the calling request is played to remind medical staff. After the medical staff hears the played information, the medical staff can answer the call through the nursing calling equipment and communicate with the patient, so that the help is provided for the patient. However, the following two situations occur in the existing case:
1, the purpose of detection cannot be achieved for some patients who cannot be pressed by a button; the adoption of the touch key can cause misoperation to bring inconvenience to nursing staff.
2 current nursing calling system, response system receive the signal after, can arrange nurse's processing, but to the phenomenon that large-scale hospital exists a plurality of calls simultaneously, can not confirm after answering which more urgent, consequently can not be accurate quick under the condition that nurse's staff is not enough handle for urgent patient.
Therefore, it is an urgent requirement to design an internet of things-based patient care assistance system capable of automatically identifying the call level of a patient.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: an internet of things based patient care assistance system with automatic identification of patient call ratings is provided.
The technical scheme of the technical problem to be solved by the invention is as follows:
the patient nursing auxiliary system based on the Internet of things comprises a response system serving as a server side and a calling terminal serving as an Internet of things terminal, wherein the calling terminal is provided with a urgency detection module used for identifying the state of pressing a calling key and determining whether a high-grade calling state or a common calling state is sent; the bed body state detection system further comprises an Internet of things detection terminal, wherein the Internet of things detection terminal comprises a bed body state detection module, an environment detection module and a transmission module; when the calling key is detected to be continuously pressed and the time interval of pressing the key twice is smaller than a continuous threshold Tc, sending a high-level calling state at the moment; when the calling key is pressed down independently, the ordinary calling state is sent; when the calling key is in a long-time pressing state or in a discontinuous pressing state and the key is not triggered, sending a confirmation calling state; the high-level call state takes precedence over the normal-level call state; after receiving a high-grade or confirmation-grade call of the calling terminal, the answering system starts an Internet of things detection terminal matched with the calling terminal, identifies whether the call is of a corresponding grade through artificial identification or artificial intelligence, and arranges nurses to serve according to results.
Preferably, when the number of times of pressing the call key is greater than the upper threshold N, or the time of continuously pressing the call key is greater than the normal threshold Ts, it is determined as an abnormal call state, and the internet of things detection module is started to confirm.
Preferably, the emergency detection module comprises an induction coil, an amplifying circuit and a permanent magnet, wherein the induction coil is electrically connected with the input end of the amplifying circuit, and the amplifying circuit is electrically connected with the controller of the call terminal; the induction coil is arranged at the lower part of the key, the permanent magnet is arranged on the side surface of the key, or the permanent magnet is arranged at the lower part of the key, the magnetic field direction of the permanent magnet is parallel to the axial direction of the induction coil, the induction coil is arranged at the lower part of the key, and when the key and the permanent magnet move relatively, the induction coil generates electromotive force; the controller detects a change in the generated electromotive force, wherein a period of the change in the electromotive force corresponds to a time interval of the key, and wherein the number of peaks or valleys of the electromotive force in a continuously fluctuating time period corresponds to the number of times of the key.
Preferably, when the induction coil is positioned at the lower part of the key, the permanent magnets are arranged at two sides of the induction coil; when the permanent magnet is arranged at the lower part of the key, the two permanent magnets are arranged and attracted with each other, and the induction coil is arranged between the two permanent magnets.
Preferably, the urgency detection module is a pressure sensor, the pressure sensor is arranged at the lower part of the key, and the pressure sensor is electrically connected with a controller of the call terminal; the controller detects the change of the generated pressure value, wherein the period of the change of the pressure value corresponds to the time interval of the key, and the number of the peak values of the pressure value in the continuous fluctuation time period corresponds to the times of the key.
Further, the bed body state detection module is a pressure sensor, the pressure sensor is uniformly arranged on the periphery of the bed body, and the environment detection module is a recorder.
Further, the internet of things detection terminal is in a standby state in a normal state, after the emergency detection module detects signal fluctuation, the internet of things detection terminal is started, and the internet of things detection terminal starts the bed body state detection module and the environment detection module to acquire environment information; after the calling terminal sends calling information, the Internet of things detection terminal sends the collected information to a response system; the response system judges whether the calling grade sent by the calling terminal is accurate according to the data collected by the Internet of things detection terminal, and if the calling grade is accurate, medical care treatment is carried out.
Further, the method for judging whether the call grade sent by the calling terminal is a high grade or a common grade comprises the following steps: and calculating the difference value of any two pressure sensors at each time point, if any difference value is greater than a violent threshold value, indicating that the patient is moving and pressing a key, and if not, playing the recording and manually judging through the recording.
Further, the method for judging whether the call grade sent by the calling terminal is the confirmation grade comprises the following steps: and calculating the difference value of any two pressure sensors at each time point, and if any difference value is larger than a severe threshold value, keeping the output value of the pressure sensor in a fluctuation state in the time period.
Further, the call terminal is provided with a nurse identification module and further comprises a nurse identification terminal, and the nurse identification terminal is worn on a nurse; when a nurse carries out nursing operation before a sickbed corresponding to the calling terminal, the identification module of the calling terminal automatically identifies the nurse identification terminal and sends nurse information to the response system; when the response system detects that a patient needing emergency treatment exists, the position of the nurse is determined through the nurse identification module, and a nursing request is sent to the nearest nurse; the nurse identification module is a Bluetooth module, and the nurse identification terminal is a mobile phone, pda or tablet provided with the Bluetooth module; or the nurse identification module is a radio frequency card reader, the nurse identification terminal is a radio frequency card, and the identification range of the radio frequency card reader is larger than the length of the hospital bed.
The invention has the beneficial effects that:
by the technical scheme disclosed by the invention, the requirements of the patient can be identified in real time, whether the patient needs to carry out urgent nursing operation is judged, and a corresponding nurse or a nearby nurse is arranged to nurse the patient. By applying the technical scheme of the invention, the nursing efficiency can be improved, the nursing service quality is further improved, and the probability of emergency of patients caused by untimely nursing is reduced.
Drawings
FIG. 1 is a schematic diagram of a button of a calling terminal according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of keys of a calling terminal according to another embodiment of the present invention;
fig. 3 is a schematic diagram of the overall system of the present invention.
In the figure:
130. a nurse identification module; 120. the Internet of things detection terminal; 110. a urgency detection module; 100. calling a terminal; 200. an answering system; 12. a permanent magnet; 11. an amplifying circuit; 10. an induction coil;
Detailed Description
In order to make the technical solution and the advantages of the present invention clearer, the following explains embodiments of the present invention in further detail.
The invention discloses a patient nursing auxiliary system based on the Internet of things, which is mainly used for solving the problem that the priority level of nursing services required by a patient is confirmed in an auxiliary mode in the existing calling nursing system and solving the problem that nursing work labor amount is increased due to repeated actions of nurses in a reciprocating mode. The system comprises a calling terminal and an answering system, wherein data transmission is realized between the calling terminal and the answering system in a wired or wireless mode.
Firstly, the calling terminal is improved, and the improvement comprises the improvement of a key of the calling terminal and the arrangement of an Internet of things detection terminal on the calling terminal. The calling terminal is provided with a urgency detection module which is used for identifying the state of pressing a calling key to determine whether a high-grade calling state or a common calling state is sent, namely, the state of pressing the key is identified by improving the key, and whether a patient really needs nursing or invalid calling caused by misoperation or urgently needs nurses to nurse the patient is judged according to the state of pressing the key.
The Internet of things detection terminal comprises a bed body state detection module, an environment detection module and a transmission module. The bed body state detection module is mainly used for detecting the pressure of each supporting mechanism of the bed body so as to judge whether the patient is in the moving state. Realize under the normal condition calling key-press, the activity of health has certain law, can detect above-mentioned law through bed body state detection module, can realize the affirmation that the button pressed down through judging whether accord with above-mentioned law. The environment detection module is mainly used for collecting environment data, including recording sound, recording video or images, collecting gas and the like. If the sickbed is a high-end sickbed and is provided with instruments and equipment for collecting physiological data of patients, the detection terminal of the Internet of things can be further provided with a signal collection interface for acquiring data collected by each instrument, such as heart rate, blood pressure, blood oxygen saturation and the like. The data collected by the Internet of things detection terminal can also be used as a judgment basis. The transmission module is a communication module, and the communication module used by the current internet of things detection terminal can be a WiFi module, a bluetooth module, a 4G communication module, an NB-IoT communication module, and the like. The Internet of things detection module sends the detected data to the response system, and the response system judges through an internal program and gives a judgment result.
Based on the system, the invention also discloses a method for judging the call state, which comprises the following steps:
the first situation is as follows: and detecting that the calling key is continuously pressed, judging the time interval of pressing the key twice adjacently at the moment, and if the time interval is less than a continuous threshold Tc, indicating that the patient or the accompanying person is in the instinctive reaction of multiple times of key calling in an emergency state. If the calling terminal detects the call state, the calling terminal sends a high-grade call state to the response system; if the answer system detects the call, namely the call terminal sends the call to the answer system when the key is pressed, the answer system judges according to the method, and if the answer system accords with the rule, the answer system judges as a high-level call state and carries out priority processing.
The value of the continuous threshold Tc is set to be 100ms to 200ms according to the characteristics of the key and the frequency of the fast key pressing by people, and 200ms is adopted in the embodiment.
In this state, there is a case where a child presses and plays with the toy, and in order to avoid a false call caused by this situation, the number of times of pressing the key or the duration of continuing the key is limited, or the number of times of pressing the key and the duration of continuing the key can be determined at the same time, and either one of them reaches the limit value and the call is cancelled. And when the number of times of pressing the calling key is greater than the upper limit threshold value N or the continuous pressing time of the calling key is greater than the normal threshold value Ts, judging that the calling state is an abnormal calling state, and starting the Internet of things detection module for confirmation. The upper threshold N may be 5-10, which is defined as 10 in this embodiment, and it is determined as a malfunction if the pressing is continuously performed 10 times or more, and the call is not started. Wherein the normal threshold Ts is set to 2-5 s, in this embodiment, 3 seconds, and after the continuous pressing action lasts for 3 seconds, it is determined as the abnormal level calling state.
Under the state, the call can be cancelled, the call signal can be sent at the same time, the data collected by the internet of things detection module is sent to the response system 200, and whether the call is real or not is manually confirmed through an artificial intelligence identification module of the response system 200 or through management personnel.
Case two: when the call key is pressed independently, namely the call key is not pressed for multiple times within a set time range, for example, the call key is not pressed for the second time within 5 seconds. The normal call state can be confirmed at this time.
Case three: for a weak patient, sometimes the button or the key cannot be pressed, and at this time, the patient may touch the key but cannot trigger the key, so that the key is in a disturbed state for a long time. At this point, the patient needs service but cannot call a nurse. For the state, when the calling key is in a long-time pressing state or in a discontinuous pressing state and the key is not triggered, the confirmation-level calling state is sent. At this point, the call nurse is also triggered to send a request for care to the answering system.
Case four: and detecting the false action, namely detecting the time length of pressing and keeping the key when the button is continuously pressed, such as the handheld calling device is scattered on a bed and pressed down by a patient, and ignoring the call if the set abnormal false action threshold is reached. And secondly, triggering the key after the impact is generated by the impact or falling, detecting the pressing speed of the key at the moment, judging through the fluctuation condition of the detection signal, if the time for triggering the key is less than an abnormal fluctuation threshold value, if the time is less than 10ms, judging as an abnormal calling state, and canceling the calling.
In the above call state, the high-class call state is prioritized over the normal-class call state.
In the above situation, the judgment accuracy is high for the high-level call state and the normal-level call state, but further confirmation is needed for the confirmation-level call state and the call cancellation state, and at this time, data detected by the detection terminal of the internet of things can be synchronously sent for judgment, or the response system requests the detection terminal of the internet of things to send collected data for further judgment.
After receiving a high-grade or confirmation-grade call of the calling terminal, the answering system starts an Internet of things detection terminal matched with the calling terminal, identifies whether the corresponding grade exists or not through artificial identification or artificial intelligence, and arranges nurses to serve according to results.
The above-described discrimination method may be implemented in the calling terminal 100 or the answering system 200. The realization of the high-level call state and the normal call state can be identified in the two devices, and the identification needs to be carried out on the call terminal 100 when the abnormal-level call state is judged, based on which, the emergency detection module in the invention comprises an induction coil 10, an amplifying circuit 11 and a permanent magnet 12, the induction coil 10 is electrically connected with the input end of the amplifying circuit 11, and the amplifying circuit 11 is electrically connected with the controller of the call terminal.
As shown in fig. 1, the induction coil is disposed at a lower portion of the key, and the permanent magnet 12 is disposed at a side surface of the key. Or as shown in fig. 2, the permanent magnet is arranged at the lower part of the key. In both of the above-described configurations, it is necessary to set the magnetic field direction of the permanent magnet 12 and the axial direction of the induction coil 10 in parallel. At this time, when the induction coil and the permanent magnet move relatively, the magnetic flux inside the induction coil changes, and electromotive force is generated at both ends of the induction coil. The outer end of the induction coil is connected with a resistor to generate a circulating current. The connecting point of one induction coil and the resistor is connected with the input end of the operational amplifier, the output end of the operational amplifier is electrically connected with the controller, and the controller is provided with an AD conversion module, so that the size of the electromotive force generated by the induction coil 10 can be detected.
The controller recognizes the change in the generated electromotive force. The pressed state is changed, but the change process is regular, and the time for pressing the key can be judged by collecting the period of the change of the electromotive force, so that the time interval for pressing the key can be further judged. The time interval may be a time period of one key press or an interval between two keys. When the calculation of the interval time between the keys is performed twice, the time length of 0 electromotive force duration between two electromotive force waveform patterns generated by the keys is detected. The values of the continuous threshold value Tc are different in two states, namely a period when the key is pressed once and a time period when the time interval is between two keys.
The number of times of pressing the key is corresponded by calculating the number of peak values or valley values of the electromotive force in the continuously fluctuating time period. After the time interval and the number of times of pressing the key are obtained, the judgment can be carried out according to the method disclosed by the invention.
The key has a disturbed state and a stable trigger state. The invention can also trigger calling when detecting the disturbance state, so as to avoid that the patient can not get timely rescue because the patient can not trigger the key. For some patients, after the calling terminal is touched, the key is pressed, but the key cannot be triggered due to weakness of the key, a weak electromotive force can be generated by the improved key of the invention in a fluctuation state, a fluctuation voltage signal can be detected after the voltage signal is amplified by the amplifying circuit, and the condition that the key is needed to be nursed but cannot be pressed is judged according to the duration of the voltage signal. The time length of the fluctuating voltage signal meeting the call state of the confirmation level is set to be 1-5 seconds, the embodiment adopts 1 second as a threshold value, the call state of the confirmation level is determined after the fluctuating voltage signal lasts for one second, and the call state of the confirmation level is determined after the fluctuating state lasts for one second. Under the state, the call system of the calling terminal can be dialed for confirmation, and data collected by the detection terminal of the internet of things can be read for judgment.
Preferably, in order to make the induction coil generate a large electromotive force, as shown in fig. 3, when the induction coil 10 is located at the lower part of the key, the permanent magnets 12 are arranged at both sides of the induction coil 10; when the permanent magnet 12 is arranged at the lower part of the key, the two permanent magnets are arranged and attracted with each other, and the induction coil 10 is arranged between the two permanent magnets.
Based on the above principle, the judgment can be performed by detecting the key pressure, the judgment basis in the principle is the electromotive force, the judgment basis in the method is the pressure value, and in the final state, the pressure value is converted into the voltage value. In the mode, the emergency detection module is a pressure sensor, the pressure sensor is arranged at the lower part of the key, and the pressure sensor is electrically connected with a controller of the calling terminal. The pressure sensor can be arranged at the lower part of the key, the lower part of the key is provided with a reset spring at the moment, and the pressure sensor is arranged between the spring and the key. The pressure sensor can also be arranged between the return spring of the key itself and its support mechanism. The key or the button of the reset mechanism is directly arranged on the lower part of the key to bear force.
The controller detects the change of the generated pressure value, wherein the period of the change of the pressure value corresponds to the interval time of the key, and the number of the peak values of the pressure value in the continuous fluctuation time period corresponds to the times of the key. The manner of determination is the same as that described above.
In this embodiment, whether the patient is pressing the call button is determined by detecting the activity rule of the patient on the bed. In order to detect the state, the bed state detecting module in this embodiment is a pressure sensor. Wherein the pressure sensors are uniformly arranged on the periphery of the bed body. Specifically, the main body of the bed body is rectangular, and the lower part of the bed body is provided with supporting legs. In this embodiment, a matrix of sensors may be provided below the upper plane of the bed, with the sensors being evenly distributed over the surface of the bed below the patient's body. Each sensor detects the pressure value of a position, can detect out the scope that receives pressure through the pressure value, and then can confirm the position that the patient lies in the bed, and at the in-process of patient's activity, the pressure value of each pressure sensor can change, and then can judge the change that the patient removed or moved body part. The function of intelligently identifying the pressed call key is achieved by deeply learning the change condition of each pressure sensor of the sensor matrix under the action of various keys through artificial intelligence.
More simply, set up pressure sensor between the supporting leg of bed board and bed board, under the most circumstances, set up pressure sensor at the periphery of bed body lower part, a week can set up 6 to 8. Then, when the calling terminal is taken or the calling key is reached, the stress condition of each pressure sensor is different, and whether the calling key is pressed or not can be judged by judging the difference. Preferably, when the calling terminal is taken or the calling key is reached, the pressure values of the pressure sensors are different, in order to ensure better accuracy, the pressure values of any two pressure sensors during the action execution period are differentiated, and whether the nursing call is in progress or not is determined by comparing the pressure values with the set pressure value difference of the calling terminal is taken or the calling key is reached.
The method for judging whether the calling grade sent by the calling terminal is a high grade or a common grade comprises the following steps:
and calculating the difference value of any two pressure sensors at each time point, and if any difference value is larger than a severe threshold value, indicating that the patient is active and pressing a key. If the calling terminal is at no position of the bed body, in order to call that the patient moves to the position, the pressure value of the pressure sensor corresponding to the position is increased, the pressure value of the pressure sensor far away from the position is reduced, the difference value of the pressure sensor is larger than a severe threshold value, and the appropriate severe threshold value is determined through actual tests and statistics.
Further, when the difference value of the two pressure sensors is detected to be larger than the violent threshold value, whether the pressure value of the pressure sensor is in a changed state within the time changing period is detected, if the pressure value is in the changed state, the operation of pressing the calling key is determined, and if the pressure value is kept stable, the key is not pressed.
The environment detection module is a sound recorder or a camera. The environment detection module is used for collecting environment information including the description information of the patient and the image information of the patient. The internet of things detection terminal collects the information and sends the information to the response system so that the response system can confirm whether the nursing call is real or not.
In order to achieve the effect of energy saving, the internet of things detection terminal is in a standby state in a normal state, after the emergency detection module detects signal fluctuation, the internet of things detection terminal is started, and information is collected after the internet of things detection terminal is started. The Internet of things detection terminal starts the bed body state detection module and the environment detection module to acquire environment information. After the calling terminal sends calling information, the Internet of things detection terminal sends the collected information to the response system.
When the answering system is determined to be in a high-level calling state and a confirmation-level calling state, whether the calling level sent by the calling terminal is accurate or not is judged according to the data collected by the Internet of things detection terminal, and if the calling level is accurate, medical care work is arranged.
The embodiment discloses a method for judging by adopting a bed body detection module, and under the condition that the judgment of the bed body detection module is inaccurate, recording information collected by an environment detection module is played and confirmed by manually judging the content of a recording. Or put through a voice call for decision.
Preferably, a nurse identification module 130 is further provided at the call terminal in order to accurately confirm the location of a nurse in order to arrange a nearby nurse to handle the nursing work. Meanwhile, a nurse identification terminal matched with the nurse is arranged on the body of the nurse. When a caregiver or a nurse approaches the call terminal, the nurse identification module 130 of the call terminal automatically identifies the nurse identification terminal and transmits the read data to the answering system. The nurse identification terminal stores information of nurses such as names and numbers of nurses.
After answering the system's call for the corresponding patient, the answering system can determine the nurse closest to the calling patient to service the patient based on the nurse location data sent by the calling terminal. Particularly when the patient requires urgent treatment. The nurse's location is determined by the nurse identification module and a care request is sent to the nearest nurse.
Based on above-mentioned function, nurse identification module is bluetooth module, nurse discernment terminal is for being equipped with bluetooth module's cell-phone, pda or dull and stereotyped. The Bluetooth module of the calling terminal is in a state of being opened all the time and has a function of automatically connecting the Bluetooth module, when the Bluetooth module of the calling terminal is connected to other Bluetooth modules, an instruction for acquiring information is sent, if no information is replied, the Bluetooth module is disconnected, and if information is replied and the identification information is a nurse identification terminal worn by a nursing staff, the acquired data is sent to a response system. And if the received information is not the nurse identification terminal, disconnecting. The mode of this configuration can effectively avoid connecting patient and his accompanying person's bluetooth module. At this time, the information stored inside the nurse identification terminal should include an identification information which can confirm that the connected module is the nursing staff identification terminal.
In addition to the active connection mode, a passive connection mode can be adopted, namely the nurse identification module is a radio frequency card reader, the nurse identification terminal is a radio frequency card, and the identification range of the radio frequency card reader is larger than the length of the hospital bed.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all equivalent changes and modifications in the shape, structure, characteristics and spirit described in the scope of the claims of the present invention are included in the scope of the claims of the present invention.
Claims (10)
1. Patient nursing auxiliary system based on thing networking, including answering system (200) as server end and call terminal (100) as thing networking terminal, its characterized in that:
the calling terminal is provided with a urgency detection module (110) which is used for identifying the state of pressing a calling key and determining whether a high-grade calling state or a common calling state is sent;
the bed body state detection system further comprises an Internet of things detection terminal (120) which comprises a bed body state detection module, an environment detection module and a transmission module;
when the calling key is detected to be continuously pressed and the time interval of pressing the key twice is smaller than a continuous threshold Tc, sending a high-level calling state at the moment;
when the calling key is pressed down independently, the ordinary calling state is sent;
when the calling key is in a long-time pressing state or in a discontinuous pressing state and the key is not triggered, sending a confirmation calling state;
the high-level call state takes precedence over the normal-level call state;
after receiving a high-grade or confirmation-grade call of the calling terminal, the answering system starts an Internet of things detection terminal matched with the calling terminal, identifies whether the call is of a corresponding grade through artificial identification or artificial intelligence, and arranges nurses to serve according to results.
2. The internet of things-based patient care assistance system of claim 1, wherein:
and when the number of times of pressing the calling key is greater than an upper limit threshold value N or the continuous pressing time of the calling key is greater than a normal threshold value Ts, judging that the calling state is an abnormal calling state, and starting the Internet of things detection module for confirmation.
3. The internet of things-based patient care assistance system of claim 1, wherein:
the emergency detection module comprises an induction coil (10), an amplification circuit (11) and a permanent magnet (12), wherein the induction coil (10) is electrically connected with the input end of the amplification circuit (11), and the amplification circuit (11) is electrically connected with a controller of the calling terminal;
the induction coil is arranged at the lower part of the key, the permanent magnet (12) is arranged at the side surface of the key, or the permanent magnet is arranged at the lower part of the key,
the magnetic field direction of the permanent magnet (12) is parallel to the axial direction of the induction coil (10), the induction coil is arranged at the lower part of the key, and when the key and the permanent magnet move relatively, the induction coil generates electromotive force;
the controller detects a change in the generated electromotive force, wherein a period of the change in the electromotive force corresponds to a time interval of the key, and wherein the number of peaks or valleys of the electromotive force in a continuously fluctuating time period corresponds to the number of times of the key.
4. The internet of things-based patient care assistance system of claim 3, wherein:
when the induction coil (10) is positioned at the lower part of the key, the permanent magnets (12) are arranged at two sides of the induction coil (10); when the permanent magnet (12) is arranged at the lower part of the key, the two permanent magnets are arranged and attracted with each other, and the induction coil (10) is arranged between the two permanent magnets.
5. The internet of things-based patient care assistance system of claim 1, wherein:
the emergency detection module is a pressure sensor, the pressure sensor is arranged at the lower part of the key, and the pressure sensor is electrically connected with a controller of the calling terminal;
the controller detects the change of the generated pressure value, wherein the period of the change of the pressure value corresponds to the time interval of the key, and the number of the peak values of the pressure value in the continuous fluctuation time period corresponds to the times of the key.
6. The internet of things-based patient care assistance system of claim 3 or 4 or 5, wherein:
the bed body state detection module is a pressure sensor, the pressure sensor is uniformly arranged on the periphery of the bed body, and the environment detection module is a recorder.
7. The internet of things-based patient care assistance system of claim 6, wherein:
the Internet of things detection terminal is in a standby state in a normal state, after the emergency detection module detects signal fluctuation, the Internet of things detection terminal is started, and the Internet of things detection terminal starts the bed body state detection module and the environment detection module to acquire environment information;
after the calling terminal sends calling information, the Internet of things detection terminal sends the collected information to a response system;
the response system judges whether the calling grade sent by the calling terminal is accurate according to the data collected by the Internet of things detection terminal, and if the calling grade is accurate, medical care treatment is carried out.
8. The internet of things-based patient care assistance system of claim 7, wherein:
the method for judging whether the calling grade sent by the calling terminal is a high grade or a common grade comprises the following steps:
and calculating the difference value of any two pressure sensors at each time point, if any difference value is greater than a violent threshold value, indicating that the patient is moving and pressing a key, and if not, playing the recording and manually judging through the recording.
9. The internet of things-based patient care assistance system of claim 6, wherein:
the method for judging whether the calling grade sent by the calling terminal is the confirmation grade comprises the following steps:
calculating the difference between any two pressure sensors at each time point, and if any difference is greater than the severity threshold,
while there is a state in which the output value of the pressure sensor remains fluctuated during the period.
10. The internet of things-based patient care assistance system of claim 1, wherein:
the call terminal is provided with a nurse identification module (130) and further comprises a nurse identification terminal, and the nurse identification terminal is worn on a nurse;
when a nurse carries out nursing operation before a sickbed corresponding to the calling terminal, the identification module of the calling terminal automatically identifies the nurse identification terminal and sends nurse information to the response system;
when the response system detects that a patient needing emergency treatment exists, the position of the nurse is determined through the nurse identification module, and a nursing request is sent to the nearest nurse;
the nurse identification module is a Bluetooth module, and the nurse identification terminal is a mobile phone, pda or tablet provided with the Bluetooth module;
or the nurse identification module is a radio frequency card reader, the nurse identification terminal is a radio frequency card, and the identification range of the radio frequency card reader is larger than the length of the hospital bed.
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