CN111489523A

CN111489523A - System and method for detecting falling of person in toilet

Info

Publication number: CN111489523A
Application number: CN201910074203.8A
Authority: CN
Inventors: 黄一宸
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2020-08-04

Abstract

The invention discloses a system and a method for detecting falling of a person in a toilet, wherein the system comprises: the direction detection module is used for judging whether a person enters the toilet compartment or not and triggering the activity sensor module after the person enters the toilet compartment; the activity sensor module is used for monitoring the activity state of the personnel in the compartment and sending feedback information to the control module when the time that the personnel in the compartment do not move exceeds a preset threshold value; the control module is used for receiving the feedback information, starting the early warning interaction module, starting the help seeking module when the early warning interaction module does not receive the response of the personnel in the compartment and the activity sensor module still does not monitor the activity of the personnel in the compartment, and otherwise triggering the activity sensor module until the direction detection module judges that the personnel in the compartment leaves; the early warning interaction module is used for interaction between management personnel and personnel in the compartment; and the help seeking module is used for sending help seeking information to the outside. The invention has simple structure, is economical and practical and is convenient for large-scale application.

Description

System and method for detecting falling of person in toilet

Technical Field

The invention relates to the technical field of infrastructure, in particular to a system and a method for detecting falling of people in a toilet.

Background

With the increasing aging degree of the population in China, people, particularly the old people, need to take care of the people at daily life, but certain specific places cannot be taken into consideration completely, particularly occasions such as toilets.

People, especially the elderly, are prone to accidents:

(1) when the old people go to the toilet, the old people are easy to cause hypertension and fall down due to constipation and other reasons;

(2) after defecation is finished, the patient stands too quickly, so that the brain is temporarily lack of blood supply and falls;

(3) other organic diseases, weak and falling down in the toilet;

since the toilet is a relatively private space, even family members generally cannot finish the toilet in the toilet for the old people, and in other words, many old people live alone, and relatives cannot live together with the old people.

If the patient falls into the toilet and no other people come to rescue around the toilet, the best rescue opportunity can be missed, and especially for the old, the patient with the disease is more, such as heart disease, coronary heart disease, apoplexy, cerebral hemorrhage and the like, can suddenly feel faint. The patient misses the optimal time for rescue due to no one knows after syncope, and the patient is irretrievable.

The existing wrist watch for monitoring blood pressure and heartbeat is available in the market, but when the old people fall down, the old people sometimes have heartbeat and blood pressure, but the dizziness cannot be judged, so that the wrist watch has obvious defects.

In addition, some families can install a camera to monitor the family in the room in real time for caring the old, find out the accident situation through the observation of the manual picture, and make corresponding response. This method requires a monitoring person to monitor the picture in real time for a long time, which requires a lot of manpower and energy, and is inevitable. In the case of a toilet, the installation of a camera is not suitable because of privacy of the individual.

Even if the posture of a person is analyzed and judged by software by adopting a thermal imager so as to judge whether the person is faint or not, firstly, the person is judged by using an image, and secondly, the hardware cost of the product is very high, so that the popularization of every family is not facilitated.

Disclosure of Invention

The embodiment of the invention provides a system and a method for detecting falling of a person in a toilet, which can effectively solve the problems in the prior art.

In a first aspect, an embodiment of the present invention provides a system for detecting a person in a toilet faint, where the system for detecting a person in a toilet faint includes: a direction detection module, an activity sensor module, a control module, an early warning interaction module and a help seeking module, wherein,

the direction detection module is arranged at an entrance and an exit of the toilet compartment and used for judging whether personnel enter the toilet compartment or not and triggering the movable sensor module after the personnel enter the toilet compartment;

the activity sensor module is used for monitoring the activity state of the personnel in the compartment, and sending feedback information to the control module when the time that the personnel in the compartment do not move exceeds a preset threshold value;

the control module is used for receiving the feedback information, starting the early warning interaction module, starting the help seeking module when the early warning interaction module does not receive the response of the personnel in the compartment and the activity sensor module does not monitor the activity of the personnel in the compartment, and otherwise triggering the activity sensor module until the direction detection module judges that the personnel in the compartment leaves;

the early warning interaction module is used for interaction between management personnel and personnel in the compartment;

and the help seeking module is used for sending help seeking information to the outside.

Preferably, the direction detection module is at least two photoelectric diffuse reflection sensors, the photoelectric diffuse reflection sensors are arranged at the entrance and exit of the compartment along the direction of the person entering and exiting the compartment, and the principle that the photoelectric diffuse reflection sensors sense the time sequence of the person during entering and exiting is adopted to judge whether the person enters or leaves the toilet.

Preferably, the direction detection module is at least two photoelectric correlation sensors, and is installed at the entrance and exit of the compartment along the direction in which people enter and exit the compartment, and the principle that the photoelectric correlation sensors sense the time sequence of people in entering and exiting the compartment is adopted to judge whether the people enter or leave the toilet.

The direction detection module can be more than 2 photoelectric type correlation or diffuse reflection type sensors, the sensing distance is at least more than N centimeters (for example, more than 20 centimeters), the direction detection module is installed at an inlet of a toilet along the entering and exiting direction of a person, and the two sensors are connected in time to judge whether the person enters or leaves the toilet.

Preferably, the direction detection module is at least two microwave detection sensors, the microwave detection sensors are installed at the entrances and exits of the compartments along the direction of the persons entering and exiting the compartments, and the principle that the microwave detection sensors sense the time sequence of the persons in the entering and exiting processes is adopted to judge whether the persons enter or leave the toilets.

Preferably, the direction detection module is a distance measurement sensor and is installed in a direction facing the entrance and exit of the person entering and exiting the compartment, and the principle that the time sequence when the distance measurement sensor senses the person during entering and exiting is adopted to judge whether the person enters or exits the toilet; the distance measuring sensor comprises an ultrasonic distance measuring sensor, a laser distance measuring sensor and a photoelectric distance measuring sensor.

Preferably, the direction detection module is a camera with image direction recognition technology.

Because the device is arranged at a specific position of a doorway, the device can be used for judging personnel entering and exiting a toilet on the premise of not invading privacy, and the image recognition technology of a camera can also be used.

Preferably, the activity sensor module is a microwave sensor.

Preferably, the activity sensor module is an infrared sensor.

Preferably, the system for detecting the falling of the person in the toilet further comprises: and the infrared array type sensor is used for judging whether personnel exist in the toilet compartment.

The infrared array type sensor is used for judging whether a human body space exists or not, and can also judge when the human body is static. The principle is not limited, the principle adopted by the scheme is an infrared array principle, and the human body can be used for a static human body without leaving an area, but some defects of the human body are that the human body can be misjudged if the temperature of the ground is similar to the temperature of the human body when a person just takes a bath in a toilet or a cup of hot water is placed on a table top, and the human body cannot be misjudged if the human body is matched with a direction detection module for use. If the sensor is used for judging whether the human body space exists or not, along with the technical progress, the misjudgment conditions of other heat sources on the sensor are overcome, and then the direction judging module can be omitted.

Preferably, the early warning interaction module comprises a buzzer installed in the compartment, and a manager of the buzzer can remotely close the buzzer and close the buzzer on site by personnel in the compartment.

Preferably, the help-seeking module is specifically used for one or more of dialing a reserved telephone number for help seeking, starting security room alarm, starting 110 linkage alarm, starting 120 medical assistance, transmitting to a mobile phone in a wireless mode and transmitting to the internet of things in a wireless mode.

Preferably, the help module comprises a camera for taking a picture when the early warning interaction module does not receive the response of the person in the compartment and the activity sensor module does not monitor the activity of the person in the compartment, and sending the picture to the rescuers after the picture is processed by the image blurring technology.

The camera can judge whether the person falls down through software image recognition. The system is used for assisting in judging scene, and is particularly used for sending picture information to a reserved mobile phone number, a reserved phone number and a reserved platform for one or more of seeking help, transmitting the picture information to a mobile phone in a wireless mode and transmitting the picture information to the Internet of things in a wireless mode. Because the image is processed by the fuzzy technology, the privacy of the personnel can not be invaded, and the image can be used as the information of the scene where the personnel fall down at that time and as the evidence of the medical personnel and the personal insurance.

In a second aspect, the present invention provides a method for detecting a person in a toilet faint, the method for detecting the person in the toilet faint includes:

s1: judging whether a person enters the toilet compartment or not through a direction detection module arranged in the toilet compartment, and executing the step S2 after the person enters the toilet compartment;

s2: monitoring the activity state of personnel in the compartment through an activity sensor module, and sending feedback information to a control module when the time that the personnel in the compartment do not move exceeds a preset threshold value;

s3: receiving the feedback information through a control module and starting an early warning interaction module to enable managers to interact with personnel in the compartments;

s4: executing step S5 when the early warning interaction module does not receive the response of the person in the compartment and the activity sensor module does not monitor the activity of the person in the compartment, otherwise executing step S2 until the direction detection module judges that the person in the compartment leaves;

s5: and sending help seeking information to the outside through the help seeking module.

Compared with the prior art, the invention has at least the following beneficial effects:

1) the structure is simple, economical and practical; the device is convenient for large-scale application in places such as toilets of families, hospitals, nursing homes and the like;

2) the system can ensure that a user can obtain help at the first time when an accident happens;

3) the system has an interaction reminding function and prevents misoperation;

4) the personal privacy of the user is not violated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of a system for detecting a person in a toilet;

FIG. 2 is a circuit diagram of a system for detecting a fall in a person in a toilet, according to an embodiment of the present invention;

FIG. 3 is a circuit diagram of a direction detection module in a circuit diagram of a system for detecting a person in a toilet;

FIG. 3A shows a circuit of a photoelectric correlation or reflection sensor; FIG. 3B is a circuit of the photoelectric diffuse reflection sensor; FIG. 3C shows a circuit of the human body infrared detection sensor; FIG. 3D is a circuit of a microwave or ultrasonic detection sensor; FIG. 3E is a circuit of a camera for direction determination; FIG. 3F is a circuit for a sensor for ranging;

FIG. 4 is a circuit diagram of an activity sensor module in a circuit diagram of a system for detecting a fall in a person in a toilet, according to one embodiment of the present invention;

FIG. 5 is a circuit diagram of an infrared array type sensor in a system circuit diagram for detecting a fall of a person in a toilet according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of a control module in a circuit diagram of a system for detecting a fall in a person in a toilet, according to an embodiment of the present invention;

FIG. 7 is a circuit diagram of an early warning interaction module in a system circuit diagram for detecting a person in a toilet;

FIG. 8 is a circuit diagram of a help module in a circuit diagram of a system for detecting a fall of a person in a toilet, according to an embodiment of the present invention;

FIG. 9 is a circuit diagram of a camera in a system circuit diagram for detecting a fall of a person in a toilet, according to an embodiment of the present invention;

FIG. 10 is a plan view of an installation layout of a system for detecting a fall in a person in a toilet according to one embodiment of the present invention;

FIG. 11 is a perspective view of two installation configurations of a system for detecting a fall in a person in a toilet, according to one embodiment of the present invention;

fig. 12 is a flowchart illustrating a method for detecting a person in a toilet faint according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a system for detecting a person in a toilet faint, including: a direction detection module, an activity sensor module, a control module, an early warning interaction module and a help seeking module, wherein,

the direction detection module is arranged in the toilet compartment and used for judging whether personnel enter the toilet compartment or not and triggering the movable sensor module after the personnel enter the toilet compartment;

The toilet compartment in the application refers to an independent privacy space, can be an independent toilet (such as a toilet in a suite) which can only accommodate one person, can also be an independent toilet separated into public toilets, and can also be other independent toilet entering spaces.

In this embodiment, the direction detection module may be at least two photoelectric diffuse reflection sensors installed at the entrance of the compartment along the direction of the person entering and exiting the compartment; the photoelectric correlation sensor can also be at least two sensors which are arranged at the entrance of the compartment along the direction of the person entering and exiting the compartment; other sensors capable of determining the direction of entry and exit of a person are also possible. Other sensors capable of determining the direction of entry and exit of a person are also possible. Such as ultrasonic or microwave sensors, image direction-discriminating cameras, laser or ultrasonic ranging sensors, etc., are shown in fig. 3A-3F.

The activity sensor module can be a microwave sensor (microwave radar sensor), an infrared sensor (infrared sensing sensor) or other types of sensors capable of detecting the movement of a person.

Here, the circuit connection relationship and the mounting layout of the relevant modules will be described with reference to fig. 2 to 11 by taking the photoelectric diffuse reflection sensor as an example.

The direction detection module is two photoelectric diffuse reflection sensors of C1 and C2, and the power supply + of C1 is connected with the power supply + of C2 and is simultaneously connected with pins J1:13/J2:13/J2:8/J3:8/DC 24V; and power of C1-connect power of C2-while connecting pins J3:14/DC 0V; the OUT terminal of C1 is connected to J1: 14; the OUT terminal of C2 is connected to J2: 14; j2:12 ligation J3:12 ligation J1: 4; j1:12 links J3: 13; the pin 7 of the normally open contact of J3 is connected with the pin Y1, and the pin 11 of the normally open contact of J3 is connected with the pin Y2; the Y1 pin of the direction detection module is connected with the 5 pin of the input end CON5 of the control module; the Y2 pin of the direction detection module is connected with the 1 pin of the input end CON5 of the control module; the sensing probe of the activity sensor module outputs three wires, which are respectively connected with PX1, PX2 and PX3 of the detection sensing circuit G1, the + of the external power supply is connected with PX5 of the G1 circuit, and the-of the external power supply is connected with PX6 of the G1 circuit. The G1 circuit judges through signal processing that the output PY1 is connected to the 13 pin of the output relay J4, the output PY2 is connected to the 14 pin of the output relay J4, the 8 pin of the J4 is connected to the output end Y3 of the movable sensor module, the 12 pin of the J4 is connected to the output end Y4 of the movable sensor module, the pin Y3 of the movable sensor module is connected to the 1 pin of the input end CON5 of the control module, and the pin Y4 of the movable sensor module is connected to the 3 pin of the input end CON5 of the control module; the GX1 end of the early warning interaction module is connected to the 7 pin of the output end CON10 of the control module, and the GX2 end of the early warning interaction module is connected to the 8 pin of the output end CON10 of the control module; the COM terminal of the help module is connected to the 9 pin of the output terminal CON10 of the control module, and the IN1 terminal of the help module is connected to the 10 pin of the output terminal CON10 of the control module.

The control module is used for controlling the camera to shoot or shoot a scene through signals of pins 9 and 10 of an output terminal CON10, but a shot image is processed through a fuzzy image of software, the shot and sent fuzzy image can only be judged to be in a reverse state or a normal state, and does not possibly invade privacy, the control circuit adopts an STM 03K3T6C chip, the input of the control module is CON5, the output is CON10, the pin 1 of CON5 is a power supply VCC, the pin 3 of CON5 is connected to a power supply R2-100K omega, the pin PA2 of the STM 03K3T 72 chip is connected to a power supply PI 2, the circuit is connected to the ground of the STM 7T 367K 3T 2, the pin is connected to a transistor 2, the pin 7 of the STM 7K 366T 2, the pin 7 of the STM 7T 2, the transistor 2, the pin 7K 2 is connected to a power supply 7T 367K 2, the power supply K2, the resistor K2 is connected to the power supply K367K 2, the transistor K2, the power supply K2, the transistor K2 is connected to the power supply K367K 366K 2, the transistor K2 is connected to the transistor K2, the transistor K367K 2, the transistor K367K 2, the transistor K367K 366K 2, the transistor K2 is connected to the transistor K367K 366K 2, the transistor K367K 2 is connected to the transistor K2, the transistor K367K 2, the transistor K367K 366K 2, the transistor K367K 366K 367K 2, the transistor K367K 2 is connected to the transistor K367K 366K 367K 366K 2, the transistor K367K 2, the transistor K367K 366K 2, the transistor K2 is connected to the transistor K2, the transistor K367K 2, the transistor K366K 2, the transistor K367K 2, the transistor K367K 2 is connected to the transistor K367K 366K 2, the transistor K367K 2 is connected to the transistor K367K 2, the transistor K367K 366K 2, the transistor K367K 366K 2, the transistor K366K 2 is connected to the transistor K2, the transistor K366K 2, the transistor K36.

C1, C2 diffuse reflection sensor is placed beside the door for people to enter and exit, and the judgment of entering the toilet is as follows: when a person enters a toilet, the sensor C1 senses the person first, and the sensor C2 senses the person later, so that the person is judged to enter the toilet; judging when the toilet is taken out: when the person walks out of the toilet, the sensor C2 senses the person first, and the sensor C1 senses the person later, so that the person is judged to enter the toilet. Signals of the two sensors C1 and C2 are sent to the circuit A, or after being judged by software, the signals are sent to an input point 5 of the control module.

The microwave sensor mainly detects moving people and objects, if the moving people and the objects enter a detection range, the output switch can be automatically switched on, when the people continuously move in the sensing range, the output switch is continuously switched on, and when the people leave or do not move, the module can delay a period of time and then the output switch is automatically switched off.

1. Principle of control

The microwave sensor transmits and receives high-frequency microwave signals (accurately sensing the movement change of an object) by using a Doppler principle, the miniature loop antenna performs microwave detection, the antenna generates an elliptical space microwave ring area with the radius of 0-5 m (adjustable) in the axis direction, when a human body moves, the reflected echo waves of the miniature loop antenna are interfered with the original microwave field (or frequency) emitted by the microwave induction controller to change, and after the change quantity is detected, amplified, shaped, subjected to multiple comparison and delayed time processing, the miniature loop antenna controls and outputs normally open and normally closed signals through signal amplification and single chip microcomputer program intelligent identification.

2. Intelligent sensing

1) When someone enters the induction detection range (0.3-5 m), the induction switch outputs a normally closed signal, when the person passes through the induction detection range and leaves the sensing area, the microwave sensor immediately transmits a disconnection signal, but the output normally closed signal is disconnected after the set delay time countdown is finished (usually about 30 seconds).

2) When someone enters the sensing detection range (0.3-5 m), the sensing switch outputs normally closed, and if the person stays in the sensing detection range all the time, the sensing device is always in a normally closed output state as long as the human body slightly moves (including the movement of limbs) before the set time delay countdown is finished. Until the person leaves the detection range or completely stays in the detection range, the set countdown time is ended, and the output is disconnected.

In one embodiment of the invention, the direction detection module is a camera with image recognition technology.

In one embodiment of the present invention, the system for detecting a person in a toilet faint further comprises: and the infrared array type sensor is used for judging whether personnel exist in the toilet compartment.

The infrared array type SENSOR belongs to a human presence sensing module, a sensing probe SENSOR1 of the infrared array type SENSOR outputs four lines, namely GND, SDA, SC L and VCC of a P6 terminal of G2, induced signals of the four lines are processed by an AMG8853 chip and then are output from TEST1 of a control output terminal, the terminal is connected to a base terminal B of an output circuit triode 8050, an emitter terminal E of the triode 8050 is connected to GND of P3 of a port of G2, DC5V of P3 of the port of G2 is connected to a pin 13 of relay J5 and is simultaneously connected to DC5V, a pin 14 of a relay J5 is connected to a collector terminal C of the triode 8050, a pin COM of a relay J5 is connected to a pin Y5 of the infrared array type SENSOR, a pin ON of the J5 is connected to a pin Y6 of the infrared array type SENSOR, and a pin Y5 of the infrared array SENSOR is connected to a pin 1 (VCC) of an input terminal 5 of the control module (CON 5) of the infrared array type SENSOR module (CON).

In one embodiment of the invention, the early warning interaction module comprises a buzzer installed in the compartment, the buzzer manager can be remotely closed, and personnel in the compartment can be closed on site.

In this embodiment, the early warning interaction module may further include a voice interaction function for communicating between the administrator and the person in the compartment.

In an embodiment of the invention, the help-seeking module is specifically used for one or more of dialing a reserved telephone number for help seeking, starting security room alarm, starting 110 linkage alarm, starting 120 medical assistance, transmitting the medical assistance to a mobile phone in a wireless mode and transmitting the medical assistance to the internet of things in a wireless mode.

As shown in fig. 12, the embodiment of the present invention provides a method for detecting a person in a toilet faint, including:

The working principle of the invention comprises in combination with fig. 2-11: when a person enters a toilet, the direction detection module C1 and the C2 photoelectric diffuse reflection sensor mounted at the door opening of the toilet act sequentially, then the J1 and the J2 relays act sequentially through the detection circuit, the J2 relay acting later enables the J3 to be conducted (at the moment, the normally closed

contacts

4 and 12 of the J1 relay are in a closed state), the normally

open contacts

8 and 12 of the J3 are closed sequentially, the J3 is self-locked, the normally open contacts 7 and 11 of the J3 are closed, then Y1 and Y2 closing signals are output, and the signals are fed back to the 5 pins of the input end CON5 of the control module. The feedback is sent to the input end PF4 of the control module chip STM8SI03K3T6C, and the person can be judged to enter the toilet according to the feedback.

The person leaving is the opposite: the J2 and J1 relays act successively, the normally closed

contacts

4 and 12 of the J1 relay which acts later are disconnected once, so that the coil of the J3 is disconnected after power failure, the self-locking

contacts

8 and 12 of the J3 are disconnected with the normally closed contacts, the state is broken, normally open output points 7 and 11 of the J3 relay are disconnected, and then the device outputs Y1 and Y2 disconnection signals which are fed back to a pin 5 of an input end CON5 of the control module. The feedback is sent to the input end PF4 of the control module chip STM8SI03K3T6C, which indicates that a person is in the toilet and can judge that the person is out of the toilet.

Furthermore, the normally open contacts 7 and 11 of the J3 are closed twice, the input end PF3 fed back to the control module is also switched off/on twice, according to the state, software can judge according to the running direction of the PF4, two persons enter the system, and by analogy, the switching on/off is performed for several times to indicate that several persons enter the system. Similarly, when the input of the chip PF4 is in a normally open state and the input point of the PF3 is turned on/off twice, the person leaves the toilet, and whether the basis of the person in the toilet is reserved in the toilet can be judged through an accumulation and subtraction algorithm.

Meanwhile, after the signal is received and used as a control signal for starting detection of an input point of the control module, namely when a 5-pin signal exists, the control module starts to process signals of 3 pins and 4 pins of the input point;

after people are confirmed to walk into a toilet, the microwave radar or the infrared sensor senses the movement of a human body, output signals are sent to input ends PX1, PX2 and PX3 of a control circuit G1, G1 is processed by the circuit and then outputs PY1 and PY2 to

pins

13 and 14 of a relay J4, J4 is conducted, pins 8 and 12 of a J4 normally-on switch, ends Y3 and Y4 are conducted, signals are output to a pin 3 of an input end CON5 of a control module, and the signals are fed back to an input end of a chip STM8SI03K3T6C of the control module to serve as signals for inputting the movement of the people.

Meanwhile, the personnel existence sensing module also senses a person through the sensing of the SENSOR1, a signal is output to a control board G2 of the device, an output end TEST1 of the personnel existence sensing module outputs a high-level signal to a base electrode b end of a triode 8050 of an output circuit of the device, the triode is conducted, coils 13 and 14 of a relay J5 are electrified and conducted, output ends Y5 and Y6 are conducted, a conducting signal is output to a pin 4 of the control module and fed back to an input end PA3 of a chip STM8SI03K3T6C of the control module, and the situation that the person is in a toilet is indicated.

Assuming that the conditions of entering and exiting the toilet and the condition of the person in the toilet are expressed by mathematical formulas, the microcomputer is convenient to program, the output is set as PF, the activity of the person entering or in the area is 1, otherwise, the output is 0, and the mathematical formula according to which the software in the control module is programmed can be:

PF＝X5*|X4-X3|

1) when a person enters a toilet for normal activities, pins 3, 4 and 5 of input CON5 are all high, i.e. 1 is mathematically considered.

PF＝1*|1-1|＝0

And if the value is equal to 0, the state is normal, and no alarm is needed.

The control module can judge that the personnel are in a normal state through software analysis without alarming.

2) When a person does not move in a toilet, the microwave or infrared sensor cannot sense a movement signal necessarily, the microwave or infrared sensor delays N seconds to output a low level, the coil of the output relay J4 is powered off, the normally open contact of the J4 is disconnected, the output ends Y3 and Y4 are disconnected, the pin 3 of the CON5 at the input end of the controller is converted into the low level, namely X3 is 0, and when the person senses that the person is present, X4 is 1,

the mathematical formula of the software programming basis in the control module can be:

PF＝X5*|X4-X3|

PF＝1*|1-0|＝1

when the situation is described, the control module outputs an alarm, and an alarm program is described later.

3) When people move in the toilet once and go out to be a living room, the direction detection module senses the leaving of people, and the working principle is as follows:

when a person leaves a toilet, the C2 and C1 sensors of the person movement direction detection module arranged at the toilet door sequentially act, the detection circuit, the J2 and the J1 relays sequentially act, the J1 relay which acts later enables the J3 self-locking state to be invalid, the J3 relay coil is de-energized, the normally open contacts 7 and 11 of the J3 which are originally conducted are in an open state, the device outputs Y1 and Y2 disconnection signals, and the signals are fed back to the 5 pins of the input end CON5 of the control module. Accordingly, it can be determined that a person leaves the toilet, that is, X5 is 0.

If the microwave or infrared sensor cannot sense the motion signal, the microwave or infrared sensor delays for N seconds to output a low level, the coil of the output relay J4 loses power, the normally open contact of J4 is disconnected, the output ends Y3 and Y4 are disconnected, and then the pin 3 of the CON5 at the input end of the controller is converted into the low level, namely X3 in the formula is 0; the human presence sensing module also does not sense human heat in the area of the toilet. Namely X4 in the formula is 0;

PF＝X5*|X4-X3|

PF＝0*|0-0|＝0

if no, the control module does not output an alarm;

4) assuming that the human presence sensing module senses the heat of the ground left by the human in the toilet, the human presence sensing module judges the heat as the human heat by mistake, but since the human leaves, X5 in the formula is 0, X4 is 1, and X3 is 0, the formula calculates logically:

PF＝X5*|X4-X3|

PF＝0*|1-0|＝0

the result is still 0, so the system does not alarm.

The above detection system may also eliminate the short circuit between the 4-pin and the 1-pin of the human presence sensing module, i.e. the input point CON5 of the control module, where X4 in the logic formula is always 1, and X4 is equal to 1, then:

5) when someone enters the bathroom, X3 is 1, X5 is 1, and the software programming formula is as follows:

PF＝X5*|1-X3|

PF＝1*|1-1|＝0

personnel have no problems, and the system does not give an alarm;

6) then someone enters the toilet and is not active, X3 is 0, X5 is 1, and the software programming formula is:

PF＝X5*|1-X3|

PF＝1*|1-0|＝1

if the personnel have problems, the system alarms;

7) then, when someone goes out of the toilet, X3 is equal to 0, X5 is equal to 0, and the software programming formula is:

PF＝X5*|1-X3|

PF＝0*|1-0|＝0

personnel have no problems and the system does not alarm.

In the above case where the calculation result is 1, the control module does not detect the action of the person, but the person is actually in the toilet, and an alarm is given.

The alarm process is as follows:

firstly, a software program logic in a chip judges and outputs a PB2 high level, an optical coupler T L4 is electrified, the high level is output to a base terminal b end of a T L9 through a resistor R39, a control relay J14 is electrified, a normally open contact of the relay is conducted, 7 and 8 pins of an output port CON10 of a controller are closed, the conducting signal is sent to GX1 and GX2 of an early warning interaction module, a prompt tone is broadcasted through a prestored voice prompt, at the moment, if a person is not really problematic, action reaction occurs, at the moment, after a microwave or infrared sensor detects a human body action signal, Y3 and Y4 output normally closed signals, an input detection point 3 of a corresponding control module can obtain the high level, and according to a formula calculated by software, PF is changed from 1 to 0, and the control module stops outputting alarm;

if no human body moves continuously after the voice or buzzing lasts for N seconds, PB1 outputs a high level (a pin 15 of a chip), an optical coupler T L5 is powered on, the high level is output to a base electrode B (the same as B and B IN the text) end of T L10 through a resistor R40, a relay J15 is controlled to be powered on, a normally open contact of the relay J15 is conducted, pins 7 and 8 of an output port CON10 of the controller are closed, the conducting signal is sent to IN1 and COM of the help seeking module, and the help seeking module automatically dials an alarm phone prestored IN the module after receiving the alarm signal of IN1, so that the function of instant alarm is achieved.

As an alternative embodiment of the present invention, in some situations, such as nursing home and hospital, the alarm is required and the current scene evidence is kept, so that in order to keep the current image data for future reference when there is a problem, the signal of the 9, 10 feet of the port CON10 outputting the alarm by the control module can be sent to the controlled camera, which is also installed on the wall or ceiling in the toilet or compartment to monitor the whole room, as shown in fig. 11.

The camera is characterized IN that after the input ends IN2 and COM ports of the camera are connected with normally closed signals, the camera can automatically take pictures or make a video and send the pictures to a prestored mobile phone, so that when the control module gives an alarm and outputs the normally closed 9 and 10 of CON10, the signals trigger the camera to take the pictures at that time and send the pictures to the prestored mobile phone number of the camera, and the camera can be used for assisting IN judging the site and judging whether a person has a dangerous situation. Of course, the device is more or less infringing on privacy rights, or is configurable with the consent of the authorized customer.

The picture of the camera can be processed by image blurring software in the camera and sent to rescuers as an assistant to judge whether the person falls down from the picture, and meanwhile, the privacy right is not violated to the maximum extent.

As a preferred embodiment of the present invention, a person entering and exiting signal installed at a door of a toilet may be used as a control module to detect the start or end of work. The invention is also characterized by being arranged beside a door of a toilet.

The human body array (existence) sensing module and the microwave radar sensor are arranged on the top of a bathroom house to detect downwards or on any wall of the bathroom to detect towards the bathroom space, preferably on the wall close to the roof, and the detecting head is aligned with the bathroom space.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.

Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A system for detecting a person in a toilet, the system comprising: a direction detection module, an activity sensor module, a control module, an early warning interaction module and a help seeking module, wherein,

2. The system for detecting the falling of the person in the toilet according to claim 1, wherein the direction detection module comprises at least two photoelectric diffuse reflection sensors, the photoelectric diffuse reflection sensors are arranged at the entrance and exit of the compartment along the direction of the person entering and exiting the compartment, and the principle that the time when the photoelectric diffuse reflection sensors sense the person in the entering and exiting process is sequential is adopted to judge whether the person enters or exits the toilet;

or the direction detection module is at least two photoelectric correlation sensors, is arranged at the entrance and exit of the compartment along the direction of the person entering and exiting the compartment, and judges whether the person enters or leaves the toilet by adopting the time sequence principle that the photoelectric correlation sensors sense the person in the entering and exiting process.

3. The system for detecting the falling of the person in the toilet according to claim 1, wherein the direction detection module comprises at least two human body infrared detection sensors, the human body infrared detection sensors are arranged at the entrances and exits of the compartment along the direction of the person entering and exiting the compartment, and the principle that the time when the person is sensed by the human body infrared detection sensors during entering and exiting is sequential is adopted to judge whether the person enters or exits the toilet;

or the direction detection module is at least two ultrasonic detection sensors, is arranged at the entrance and exit of the compartment along the direction of the person entering and exiting the compartment, and judges whether the person enters or exits the toilet by adopting the time sequence principle that the ultrasonic detection sensors sense the person in the entering and exiting process;

or the direction detection module is at least two microwave detection sensors, is arranged at the entrance and exit of the compartment along the direction of the person entering and exiting the compartment, and judges whether the person enters or exits the toilet by adopting the time sequence principle that the microwave detection sensors sense the person in the entering and exiting process.

4. The system for detecting the falling of the person in the toilet according to claim 1, wherein the direction detection module is a distance measurement sensor and is installed right opposite to the direction of the person entering or exiting the entrance/exit of the compartment, and the principle that the distance measurement sensor senses the time sequence of the person when the person enters or exits the toilet is adopted to judge whether the person enters or exits the toilet; the distance measuring sensor comprises an ultrasonic distance measuring sensor, a laser distance measuring sensor and a photoelectric distance measuring sensor.

5. The system for detecting a personal stun in a toilet according to claim 1, wherein the direction detection module is a camera with image direction recognition technology.

6. The system for detecting a personal stun in a toilet according to claim 1, wherein the activity sensor module is a microwave sensor;

or, the activity sensor module is an infrared sensor.

7. The system for detecting a person in a toilet faint according to claim 1, further comprising: and the infrared array type sensor is used for judging whether personnel exist in the toilet compartment.

8. The system for detecting the faint of a person in a toilet according to claim 1, wherein the early warning interaction module comprises a buzzer installed in the compartment, the buzzer manager can remotely shut down, and the person in the compartment can shut down on site.

9. The system for detecting the falling of the person in the toilet according to claim 1, wherein the help module is specifically used for one or more of dialing a reserved telephone number for help, starting a security room alarm, starting a 110 linkage alarm, starting a 120 medical aid, transmitting the help to a mobile phone in a wireless manner and transmitting the help to the internet of things in a wireless manner;

and/or the help seeking module comprises a camera which is used for taking a picture when the early warning interaction module does not receive the response of the personnel in the compartment and the activity sensor module does not monitor the activity of the personnel in the compartment, and sending the picture to the rescue personnel after the picture is processed by the image blurring technology.

10. A method of detecting a person in a toilet faint, the method comprising: