CN105943274B

CN105943274B - Clinical care sick bed

Info

Publication number: CN105943274B
Application number: CN201610353103.5A
Authority: CN
Inventors: 李红军
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-24
Filing date: 2016-05-24
Publication date: 2018-02-13
Anticipated expiration: 2036-05-24
Also published as: CN105943274A; CN107693282A

Abstract

The present invention relates to a kind of clinical care sick bed, including sick bed and security maintenance system, the system includes spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight rate detection device and Ling Yang SPCE061A chips, Ling Yang SPCE061A chips respectively with spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight rate detection device connects, determine whether to start human body detecting device and infrared detection equipment for the output based on weight rate detection device, it is additionally operable to the output based on human body detecting device and the output of infrared detection equipment determines whether that spring equipment and inflator pump send the air cushion for falling trigger signal to eject and full of sick bed lower position is located at.By means of the invention it is possible to patient is avoided to be come to harm when falling sick bed accidentally.

Description

Clinical care sick bed

Technical field

The present invention relates to field of medical device, more particularly to a kind of clinical care sick bed.

Background technology

For to be treated in hospital department etc. or receive the patient for the treatment of, sick bed is their main activities field Institute, hospital management side and families of patients wish that patient can restfully couch and rest or receive treatment on one's sick bed, ensure patient Treatment phase and convalescence can normally be tided on one's sick bed, with wait terminate treatment date to facing.

However, if patient falls from sick bed accidentally, can not estimate to the injury that patient brings, because The state of an illness of some patients in itself is easy to because fall and bring secondary injury, such as some patients, itself be subject to be muscle or The damage of muscles and bones, if fallen under sick bed again, exacerbate the state of an illness of itself, it is also possible to which some patients are during treatment Fall under sick bed, also carry medical care device on body when falling, such as breathing mask etc., if fallen, be likely to Patient is caused to be in the boundary being in extreme danger because medical care device comes off.

Generally, patient is safely can to rest or receive on one's sick bed treatment, is on the one hand because uninterrupted Ground has medical personnel and carries out medical and nursing work, or has families of patients and look after for a long time, even in night, it is also possible to arranges special The nursing staff of door retains one's original salary patient is nursed, and shortens the unmanned nurse time of patient, on the other hand also in that some Patient still has certain ability to act, to oneself having carried out self specification, reduces the probability to fall from the bed.But medical care Personnel, families of patients or even the nursing staff that retains one's original salary are manually to nurse after all, and oneself also has the time had a meal, rested, can not be right Patient carries out the uninterrupted, nurse of 24 hours, and therefore, patient still has certain unmanned nurse time, meanwhile, also have Patient is to completely lose ability to act, for these patients, it is likely to once unintentionally turns over the hair for resulting in falling from bed event It is raw.

In order to avoid the generation of patient's falling from bed event, in the prior art, hospital management side also takes much positive arrange Apply, for example, transforming sick bed bed body, increase the height of guardrail, and set some geofences to set in sick bed bed body Standby and emergence call equipment, to reduce the possibility of patient's falling from bed, the trigger device of falling from bed alarm is provided for patient, these transformations Sick bed equipment afterwards reduces the generation of patient's falling from bed event to a certain extent.Meanwhile hospital management side also takes Measure, such as increase and the interaction and communication of families of patients, to reduce the time of the unmanned nurse of patient.

But to make mechanism excessively simple for these existing hospital bed structural reforms, because patient's falling from bed duration intervals are very of short duration, on The detection and warning device accuracy of detection stated be not high, detection efficiency is low, the increase of guardrail height and nurses the increase of time only The probability of patient's falling from bed can be reduced, without being avoided that the event of falling from bed occurs, most importantly, is lacked in the prior art to patient The fast reaction measure of falling from bed event and fast reaction equipment, fast reaction can not be carried out to patient's falling from bed event, can not be timely Patient body is quickly supported, leads to not the ill effect for avoiding patient's falling from bed.

Therefore, it is necessary to which a kind of new technical scheme with hospital bed fall arrest, can accurately and efficiently detect disease The falling from bed event of people, can quickly be alarmed, additionally it is possible to patient be given first aid to using some emergency reaction equipment, so as to have Effect avoids patient from being improved the intelligent level of sick bed by injury is hit, maintain the medical care effect of hospital.

The content of the invention

In order to solve the above problems, the invention provides a kind of clinical care sick bed, by transforming existing hospital bed Bed body, weight detection equipment, image detecting apparatus and ray detector are introduced in existing hospital bed bed body to disease People's falling from bed event carries out accurate judgement, introduces some sources of early warning and is alarmed accordingly, it is often more important that, also introduce Targetedly urgent rescue equipment is effectively supported to the patient body to fall, so as to improve the security performance of sick bed.

According to an aspect of the present invention, there is provided a kind of clinical care sick bed, including sick bed and security maintenance system, it is described System includes spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight rate detection device and Ling Yang SPCE061A chips, Ling Yang SPCE061A chips are set with spring equipment, inflator pump, human body detecting device, infrared detection respectively Standby, weight rate detection device connection, determine whether to start people's physical examination for the output based on weight rate detection device Measurement equipment and infrared detection equipment, the output for being additionally operable to the output based on human body detecting device and infrared detection equipment determine Whether the air cushion for falling trigger signal to eject and full of sick bed lower position is located at is sent to spring equipment and inflator pump.

More specifically, in the clinical care sick bed, including：Weight rate detection device, under sick bed bed board Lateral location, including weight detector and timer, weight detector are used to detect the load weight on sick bed bed board, weight in real time The output of output and timer of the quantitative change rate detection device based on weight detector determines that the load weight on sick bed bed board becomes Rate, when load weight rate of change is more than default rate of change, weight change pre-warning signal is sent, when load weight rate of change is small When equal to default rate of change, weight change normal signal is sent；CCD sensing equipments, positioned at the side of sick bed bed board, backwards to disease Bed side is shot with horizontal shooting direction to obtain high definition side image；

Spatial domain picture strengthens equipment, is connected with CCD sensing equipments to receive high definition side image, including direct greyscale transformation The sub- sub- equipment of equipment and histogram modification, the direct sub- equipment of greyscale transformation is connected with CCD sensing equipments, for high definition side view Picture performs direct greyscale transform process to obtain the first enhancing image, the sub- equipment of histogram modification and the sub- equipment of direct greyscale transformation Connection, histogram modification processing is performed to obtain the second enhancing figure for receiving the first enhancing image, and to the first enhancing image Picture, wherein, direct greyscale transform process carries out computing using logarithmic function to each pixel value of high definition side image, will transport Each pixel value composition the first enhancing image after calculation, histogram modification processing change the by changing the shape of histogram The gray scale of one enhancing image is laid out to strengthen the first enhancing image, obtains the second enhancing image；Wiener filtering equipment, with spatial domain figure The sub- equipment connection of the histogram modification of image intensifying equipment, for receiving the second enhancing image, and the is performed to the second enhancing image One filtering process is to obtain the first filtering image, wherein the first filtering process is used to cause the first filtering image and the second enhancing to scheme The mean square error minimum of picture is to remove speckle noise and white noise in the second enhancing image；Modified medium filtering equipment, with Wiener filtering equipment is connected to obtain the first filtering image, including the sub- equipment of noise measuring, module are selected at sub- equipment and filtering Sub- equipment is managed, the sub- equipment of noise measuring is connected with Wiener filtering equipment, passes through the gray value of the pixel to the first filtering image Analyzed to determine the distribution radius in each noise profile region, and by the distribution radius in each noise profile region Maximum selects sub- equipment to be connected with the sub- equipment of noise measuring as maximum distribution radius output, module, for receiving maximum point Cloth radius, and based on maximum distribution radius selection carry out medium filtering filtration module, the sub- equipment of filtering process respectively with wiener Filter apparatus selects sub- equipment to connect with module, for carrying out medium filtering to the first filtering image based on the filtration module of selection To obtain the second filtering image, wherein median filter process is included for each pixel conduct in the first filtering image for processing Target pixel points carry out following handle：With the filtration module of position of the target pixel points in the first filtering image alternatively The centre of form takes out multiple pixels as multiple reference image vegetarian refreshments in the first filtering image, takes the pixel value of multiple reference image vegetarian refreshments In maximum and minimum value as pixel maximum and pixel minimum, to determine the flat of pixel maximum and pixel minimum Average is using as pixel average, for each reference image vegetarian refreshments, if its pixel value is less than pixel average, with 0 generation For its pixel value, if its pixel value is more than or equal to pixel average, retain its pixel value, finally by multiple reference image vegetarian refreshments Pixel value average value as target pixel points pixel value export；Human body detecting device, with modified medium filtering equipment Connection, all pixels point of the pixel gray value in the second filtering image in human body intensity value ranges is formed into human body subgraph Picture, when the sum of the pixel occupied by human body subgraph is more than or equal to presetted pixel point quantity, sends and human body signal be present, Otherwise, no human body signal is sent；Infrared detection equipment, positioned at the side of sick bed bed board, for detecting whether having object from disease The side of bed bed board is passed through, and when detecting that object passes through from the side of sick bed bed board, sends object and skim over signal；Spring Equipment, be connected and be arranged on air cushion with Ling Yang SPCE061A chips, for receive fall trigger signal when, by air cushion from Sick bed lower position level is ejected into the side of sick bed, and sends spring operation after the horizontal ejection of air cushion and complete signal；Inflation Pump, it is connected respectively with spring equipment, Ling Yang SPCE061A chips and air cushion, for trigger signal and receiving receiving to fall When signal is completed in spring operation, air cushion is inflated according to preset inflation capacity；Air cushion, do not receive and fall in spring equipment Before trigger signal, remain in below sick bed and be in contraction state, enter for the human body that fallen after inflation to sick bed Row protection；Solar energy detection device, on the exterior wall of building where ward, for detecting current solar energy intensity in real time； Power supply unit, including solar powered device, battery, switching switch and electric pressure converter, switching switch respectively with solar energy Detection device, solar powered device connect with battery, when the solar energy intensity that the dump energy of battery is insufficient and current During optionally greater than preset strength, solar powered device is switched to be powered by solar powered device, electric pressure converter is with cutting Switch connection is changed, using the 5V voltage conversions by input is switched by switching as 3.3V voltages, wherein solar powered device is located at Where ward on the exterior wall of building, solar powered device includes solar energy photovoltaic panel；Wireless charging device, respectively with solar energy Detection device connects with battery, when the insufficient and current solar energy intensity of the dump energy of battery is less than preset strength, Establish and connected to start wireless charging operation with neighbouring wireless charging terminal, wireless charging device is also connected with electric pressure converter To realize voltage conversion；Sound and light alarm equipment, it is connected with Ling Yang SPCE061A chips, including the sub- equipment of audible alarm and light alarm Sub- equipment be used for receive fall trigger signal or fall pre-warning signal when carry out corresponding sound and light alarm operation；User inputs Equipment, it is connected with MS storage cards, under the operation of user, preset content to be inputted into MS storage cards；Ling Yang SPCE061A Chip, set respectively with CCD sensing equipments, spring equipment, weight rate detection device, human body detecting device and infrared detection Standby connection, after weight change pre-warning signal is received, start CCD sensing equipments, human body detecting device and infrared detection equipment, Then human body signal be present and when receiving object and skimming over signal receiving, send trigger signal of falling, receiving nobody Body signal and when receiving object and skimming over signal, sends the pre-warning signal that falls, and do not receive object and skim over signal and only connect Receive and human body signal be present, send the pre-warning signal that falls；MS storage cards, for having prestored presetted pixel point quantity and having preset Rate of change；Civil power access interface, is connected with line, for receiving the Alternating Current Power Supply signal of line input；Electric current is mutual Sensor and sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, for A phase lines, B phase lines Current signal in road and C phase lines is sampled respectively；A phase lines, B phase lines in voltage sample circuit, with line Road connects with C phase lines, for being sampled respectively to the voltage signal in A phase lines, B phase lines and C phase lines；Electric current is believed Number modulate circuit, is connected with current transformer and sample circuit, for carrying out signal condition to sampling current；Voltage signal is nursed one's health Circuit, it is connected with voltage sample circuit, for carrying out signal condition to sampling voltage；AD73360 chips, respectively with current signal Modulate circuit is connected with voltage signal conditioning circuit, and 16 are performed respectively to the sampling current after conditioning and the sampling voltage after conditioning Position A/D conversions, are obtained digital current signal and digital voltage signal, are also determined based on digital current signal and digital voltage signal The virtual value of digital current signal and the virtual value of digital voltage signal；Alternating Current Power Supply conversion equipment, with the A phases in line Circuit, B phase lines connect with C phase lines, for performing conversion of the alternating current to direct current；Display device, with AD73360 chips Connection, for the virtual value of real-time display digital current signal and the virtual value of digital voltage signal；Wherein, module selection is set The standby filtration module that medium filtering is carried out based on maximum distribution radius selection is included：It is bigger to be maximally distributed radius, the progress of selection The filtration module of medium filtering is bigger, and maximum distribution radius is smaller, and the filtration module of the progress medium filtering of selection is smaller；Its In, module selects filtration module selective in sub- equipment to include 3 × 3,5 × 5,7 × 7 and 9 × 9.

More specifically, in the clinical care sick bed：User input equipment is keyboard array.

More specifically, in the clinical care sick bed：Infrared detection equipment includes RF transmitter and infrared ray Receiver.

More specifically, in the clinical care sick bed：Infrared detection equipment includes microcontroller.

More specifically, in the clinical care sick bed：Microcontroller is 51 series monolithics, and is sent out respectively with infrared ray Emitter connects with infrared receiver.

Brief description of the drawings

Embodiment of the present invention is described below with reference to accompanying drawing, wherein：

Fig. 1 is the block diagram of the clinical care sick bed according to embodiment of the present invention.

Reference：1 spring equipment；2 inflator pumps；3 human body detecting devices；4 infrared detection equipment；5 weight rates Detection device；6 Ling Yang SPCE061A chips

Embodiment

The embodiment of the clinical care sick bed of the present invention is described in detail below with reference to accompanying drawings.

Medical Devices can be divided into 10 classes：Ward nursing equipment (sick bed, stroller, oxygen cylinder, paunch flusher, needleless injector Deng)；Surgical apparatus (operation table, lighting apparatus, operating theater instruments and various, frame, stool, cabinet, in addition to microsurgical equipment)；Put Penetrating therapeutic equipment, (contact therapy unit, superficial therapy machine, depth therapy apparatus, accelerator, 60 cobalt bombs, radium or 137 caesium intracavitary are controlled Treatment and afterloading unit treatment etc.)；Nuclear medicine treatments equipment-treatment method has internal-radiation therapy, application therapy and colloid therapy three Kind；Physics and chemistry equipment (can be generally divided into phototherapy commercial affairs, electrial medical apparatus, ultrasonic therapy and sulphur and treat the class of equipment 4)；Laser equipment-doctor With laser generator (conventional has ruby laser, He-Ne Lasers, carbon dioxide laser, argon laser and YAG laser etc.)； Dialysis treatment equipment (conventional artificial kidney has flat membranes type artificial kidney and the major class of cast artificial kidney two)；Body temperature freezing equipment (is partly led Body cryoprobe, gas cryoprobe and solid cryoprobe etc.)；First-aid apparatus (defibrillation pacing devices, breathing apparatus, ultrasonic atomizer Deng)；Other therapeutic equipment (hyperbaric oxygen chamber, the chrome device of ophthalmic high frequency, locking magnet, vitreous cutter, blood adults point From device etc.).This belongs to each section's special for treating equipment, can also be separately divided into one kind if necessary.

Sick bed is most basic, most common Medical Devices in hospital, and the medical time and nurse time of most patients are all Tide on one's sick bed, however, due to sick bed constructs in itself and unmanned nursing time presence, during patient's falling from bed event There is generation, larger injury is caused to patient, in addition to bringing the pain of injury that some hit, also likely expand patient The state of an illness, recovery and treatment to patient adversely affect.

Currently, hospital management side also actively takes some measures and patient's falling from bed event is prevented and avoided, such as Bed body, increase source of early warning are reinforced, reduces unmanned nursing time, still, on the one hand these measures and equipment are excessively simple, detection It is inefficient with early warning, on the other hand, lack the urgent rescue equipment that patient body is held up in patient's falling from bed, even if having detected Consequence caused by patient's falling from bed event also can not avoid patient's falling from bed, does not provide any help in practice for patient.

In order to overcome above-mentioned deficiency, the present invention has built a kind of clinical care sick bed, using existing hospital bed bed body, Structure of modification and upgrading are carried out to it, various detection devices and source of early warning is added and patient's falling from bed event is accurately known , it is not particularly critical, it also add effective emergency reaction equipment and carry out urgent rescue in patient's falling from bed, so as to avoid Falling from bed event damages to patient.

Fig. 1 is the block diagram of clinical care sick bed according to embodiment of the present invention, including sick bed and safety Maintenance system, the system include spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight rate inspection Measurement equipment and Ling Yang SPCE061A chips, Ling Yang SPCE061A chips respectively with spring equipment, inflator pump, human body detecting device, Infrared detection equipment, the connection of weight rate detection device, it is for the output determination based on weight rate detection device No startup human body detecting device and infrared detection equipment, are additionally operable to the output based on human body detecting device and infrared detection are set Standby output determines whether that spring equipment and inflator pump send and fall trigger signal to eject and be full of positioned at orientation under sick bed The air cushion put.

Then, continue that the concrete structure of the clinical care sick bed of the present invention is further detailed.

The system includes：Weight rate detection device, positioned at sick bed bed board downside position, including weight detector And timer, weight detector are used to detect the load weight on sick bed bed board in real time, weight rate detection device is based on weight The load weight rate of change in the output of detector and the output determination sick bed bed board of timer is measured, when load weight rate of change is big When default rate of change, weight change pre-warning signal is sent, when load weight rate of change is less than or equal to default rate of change, is sent Weight change normal signal.

The system includes：CCD sensing equipments, positioned at the side of sick bed bed board, backwards to ward bed side with horizontal shooting side To shooting to obtain high definition side image；Spatial domain picture strengthens equipment, is connected with CCD sensing equipments to receive high definition side view Picture, including the sub- equipment of direct greyscale transformation and the sub- equipment of histogram modification, the direct sub- equipment of greyscale transformation connect with CCD sensing equipments Connect, for performing direct greyscale transform process to high definition side image to obtain the first enhancing image, the sub- equipment of histogram modification It is connected with the sub- equipment of direct greyscale transformation, histogram modification is performed for receiving the first enhancing image, and to the first enhancing image Handle to obtain the second enhancing image, wherein, direct greyscale transform process is using logarithmic function to each of high definition side image Individual pixel value carries out computing, and by each pixel value composition the first enhancing image after computing, histogram modification processing is by changing The shape for becoming histogram is laid out to strengthen the first enhancing image to change the gray scale of the first enhancing image, obtains the second enhancing figure Picture.

The system includes：Wiener filtering equipment, it is connected, uses with the sub- equipment of histogram modification of spatial domain picture enhancing equipment Strengthen image in receiving second, and the first filtering process is performed to obtain the first filtering image to the second enhancing image, wherein the One filtering process is used to cause the mean square error minimum of the first filtering image and the second enhancing image to remove the second enhancing image In speckle noise and white noise.

The system includes：Modified medium filtering equipment, it is connected with Wiener filtering equipment to obtain the first filtering image, Sub- equipment and the sub- equipment of filtering process, the sub- equipment of noise measuring is selected to be set with Wiener filtering including the sub- equipment of noise measuring, module Standby connection, analyzed by the gray value of the pixel to the first filtering image to determine point in each noise profile region Cloth radius, and using the maximum in the distribution radius in each noise profile region as maximum distribution radius output, module selection Sub- equipment is connected with the sub- equipment of noise measuring, is maximally distributed radius for receiving, and select in carrying out based on maximum distribution radius The filtration module of value filtering, the sub- equipment of filtering process selects sub- equipment to be connected with Wiener filtering equipment and module respectively, for base Median filter process is carried out to the first filtering image to obtain the second filtering image, wherein medium filtering in the filtration module of selection Processing includes carrying out following handle as target pixel points for each pixel in the first filtering image：With target pixel points The centre of form of the filtration module of position alternatively in the first filtering image takes out multiple pixels in the first filtering image As multiple reference image vegetarian refreshments, maximum in the pixel value of multiple reference image vegetarian refreshments and minimum value are taken to be used as pixel maximum And pixel minimum, the average value of pixel maximum and pixel minimum is determined using as pixel average, for each ginseng Pixel is examined, if its pixel value is less than pixel average, its pixel value is replaced with 0, if its pixel value is more than or equal to picture Plain average value, then retain its pixel value, finally using the average value of the pixel value of multiple reference image vegetarian refreshments as target pixel points Pixel value exports.

The system includes：Human body detecting device, it is connected with modified medium filtering equipment, by picture in the second filtering image All pixels point composition human body subgraph of the vegetarian refreshments gray value in human body intensity value ranges, when the picture occupied by human body subgraph When the sum of vegetarian refreshments is more than or equal to presetted pixel point quantity, sends and human body signal be present, otherwise, send no human body signal.

The system includes：Infrared detection equipment, positioned at the side of sick bed bed board, for detecting whether having object from disease The side of bed bed board is passed through, and when detecting that object passes through from the side of sick bed bed board, sends object and skim over signal.

The system includes：Spring equipment, it is connected and is arranged on air cushion with Ling Yang SPCE061A chips, for receiving To fall trigger signal when, air cushion is ejected into the side of sick bed from sick bed lower position level, and after the horizontal ejection of air cushion Send spring operation and complete signal；Inflator pump, be connected respectively with spring equipment, Ling Yang SPCE061A chips and air cushion, for Receive fall trigger signal and receive spring operation complete signal when, air cushion is inflated according to preset inflation capacity； Air cushion, before spring equipment does not receive trigger signal of falling, remain in below sick bed and be in contraction state, for The human body that fallen after inflation to sick bed is protected.

The system includes：Solar energy detection device, it is current for detecting in real time on the exterior wall of building where ward Solar energy intensity；Power supply unit, including solar powered device, battery, switching switch and electric pressure converter, switching switch It is connected respectively with solar energy detection device, solar powered device and battery, when the dump energy of battery is insufficient and current Solar energy intensity when being optionally greater than preset strength, be switched to solar powered device to be powered by solar powered device, electricity Pressure converter and switching switch connection, so that the 5V voltage conversions of input will be switched by switching as 3.3V voltages, wherein solar energy Where power supply device is located at ward on the exterior wall of building, solar powered device includes solar energy photovoltaic panel.

The system includes：Wireless charging device, it is connected respectively with solar energy detection device and battery, when battery When dump energy is insufficient and current solar energy intensity is less than preset strength, establishes and connected to open with neighbouring wireless charging terminal Dynamic wireless charging operation, wireless charging device are also connected with electric pressure converter to realize voltage conversion.

The system includes：Sound and light alarm equipment, be connected with Ling Yang SPCE061A chips, including the sub- equipment of audible alarm and The sub- equipment of light alarm be used for receive fall trigger signal or fall pre-warning signal when carry out corresponding sound and light alarm operation.

The system includes：User input equipment, it is connected with MS storage cards, under the operation of user, being stored to MS Preset content is inputted in card.

The system includes：Ling Yang SPCE061A chips, examined respectively with CCD sensing equipments, spring equipment, weight rate Measurement equipment, human body detecting device connect with infrared detection equipment, after weight change pre-warning signal is received, start CCD sensings Equipment, human body detecting device and infrared detection equipment, letter then is skimmed over receiving human body signal to be present and receive object Number when, send trigger signal of falling, when receiving no human body signal and receiving object and skim over signal, send the early warning letter that falls Number, and do not receive object and skim over signal and receive only and human body signal be present, send the pre-warning signal that falls；MS storage cards, For having prestored presetted pixel point quantity and default rate of change.

The system includes：Civil power access interface, is connected with line, and the exchange for receiving line input supplies Electric signal；Current transformer and sample circuit, be connected with the A phase lines in line, B phase lines and C phase lines, for pair Current signal in A phase lines, B phase lines and C phase lines is sampled respectively；A in voltage sample circuit, with line Phase line, B phase lines connect with C phase lines, for entering respectively to the voltage signal in A phase lines, B phase lines and C phase lines Row sampling；Current signal conditioning circuit, it is connected with current transformer and sample circuit, for carrying out signal tune to sampling current Reason；Voltage signal conditioning circuit, it is connected with voltage sample circuit, for carrying out signal condition to sampling voltage.

The system includes：AD73360 chips, connect respectively with current signal conditioning circuit and voltage signal conditioning circuit Connect, perform 16 A/D conversion respectively to the sampling current after conditioning and the sampling voltage after conditioning, obtain digital current signal and Digital voltage signal, the virtual value and numeral electricity of digital current signal are also determined based on digital current signal and digital voltage signal Press the virtual value of signal.

The system includes：Alternating Current Power Supply conversion equipment, with the A phase lines in line, B phase lines and C phase lines Connection, for performing conversion of the alternating current to direct current；Display device, it is connected with AD73360 chips, for real-time display numeral The virtual value of current signal and the virtual value of digital voltage signal；

Wherein, module, which selects sub- equipment to carry out the filtration module of medium filtering based on maximum distribution radius selection, includes：Most Big distribution radius is bigger, and the filtration module of the progress medium filtering of selection is bigger, and maximum distribution radius is smaller, in the progress of selection The filtration module of value filtering is smaller；Wherein, module selects filtration module selective in sub- equipment to include 3 × 3,5 × 5,7 × 7 With 9 × 9.

Alternatively, in the platform：User input equipment is keyboard array；Infrared detection equipment is sent out including infrared ray Emitter and infrared receiver；Infrared detection equipment includes microcontroller；And microcontroller is 51 series monolithics, and point It is not connected with RF transmitter and infrared receiver.

In addition, wave filter, is the device filtered to ripple as its name suggests." ripple " is that a very extensive physics is general Read, in electronic technology field, the value that " ripple " is narrowly confined to refer in particular to describe various physical quantitys is with time fluctuations Process.The process is converted into the function of time of voltage or electric current, referred to as various physical quantitys by the effect of various kinds of sensors Time waveform, or referred to as signal.Because the independent variable time is continuous value, referred to as continuous time signal, Habitually it is referred to as analog signal again.

With the generation and rapid development of digital electronic computer technology, for the ease of computer to signal at Reason, generate the complete theoretical and method that continuous time signal is transformed into discrete-time signal under sampling theorem guidance. That is, primary signal only can be expressed without losing with sample value of the original analog signal on series of discrete time coordinate point Lose any information since the expression of ripple, waveform, signal these concepts be various physical quantitys in objective world change, naturally It is the carrier for the various information that modern society depends on for existence.Information needs to propagate, and what is leaned on is exactly the transmission of waveform signal.Signal exists Its generation, conversion, each link of transmission may be distorted due to the presence of environment and interference, even quite a lot of In the case of, this distortion is also very serious, causes signal and its entrained information to be embedded in dearly among noise.In order to These noises are filtered out, recover the signal of script, it is necessary to be filtered processing using various wave filters.

Can not be that the patient to be fallen from sick bed is carried out promptly for prior art using the clinical care sick bed of the present invention The technical problem of rescue, testing result comprehensive analysis is carried out by adding high-precision multiple detection devices, effectively to judge disease Whether people falls, and is additionally added necessary warning device and is alarmed, at the same be also added into special emergency reaction equipment with Urgent rescue is carried out when patient falls, so as to embody the humane rescue spirit of hospital.

It is understood that although the present invention is disclosed as above with preferred embodiment, but above-described embodiment and it is not used to Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention, Many possible changes and modifications are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection It is interior.

Claims

1. a kind of clinical care sick bed, including sick bed and security maintenance system, the system includes spring equipment, inflator pump, people Physical examination measurement equipment, infrared detection equipment, weight rate detection device and Ling Yang SPCE061A chips, Ling Yang SPCE061A cores Piece is connected with spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight rate detection device respectively, is used Determine whether to start human body detecting device and infrared detection equipment in the output based on weight rate detection device, be additionally operable to The output of output and infrared detection equipment based on human body detecting device determines whether that spring equipment and inflator pump send pendant Fall trigger signal to eject and be full of the air cushion positioned at sick bed lower position；

Characterized in that, the system also includes：

Weight rate detection device, positioned at sick bed bed board downside position, including weight detector and timer, weight detecting Instrument is used to detect the load weight on sick bed bed board, output and meter of the weight rate detection device based on weight detector in real time When device output determine load weight rate of change on sick bed bed board, when load weight rate of change is more than default rate of change, hair Go out weight change pre-warning signal, when load weight rate of change is less than or equal to default rate of change, send weight change normal signal；

CCD sensing equipments, positioned at the side of sick bed bed board, shot backwards to ward bed side with horizontal shooting direction to obtain high definition side Face image；

Spatial domain picture strengthens equipment, is connected with CCD sensing equipments to receive high definition side image, including direct greyscale transformation is set The standby and sub- equipment of histogram modification, the direct sub- equipment of greyscale transformation is connected with CCD sensing equipments, for being held to high definition side image To obtain the first enhancing image, the sub- equipment of histogram modification connects the direct greyscale transform process of row with the sub- equipment of direct greyscale transformation Connect, histogram modification processing performed to obtain the second enhancing image for receiving the first enhancing image, and to the first enhancing image, Wherein, direct greyscale transform process carries out computing using logarithmic function to each pixel value of high definition side image, by computing Each pixel value composition the first enhancing image afterwards, histogram modification processing change first by changing the shape of histogram The gray scale of enhancing image is laid out to strengthen the first enhancing image, obtains the second enhancing image；

Wiener filtering equipment, it is connected with the sub- equipment of histogram modification of spatial domain picture enhancing equipment, for receiving the second enhancing figure Picture, and the first filtering process is performed to obtain the first filtering image to the second enhancing image, wherein the first filtering process is used to make The first filtering image and the second enhancing image mean square error minimum to remove speckle noise in the second enhancing image and in vain Noise；

Modified medium filtering equipment, it is connected with Wiener filtering equipment to obtain the first filtering image, including noise measuring is set Standby, module selects sub- equipment and the sub- equipment of filtering process, and the sub- equipment of noise measuring is connected with Wiener filtering equipment, by first The gray value of the pixel of filtering image is analyzed to determine the distribution radius in each noise profile region, and made an uproar each Maximum in the distribution radius of sound distributed areas selects sub- equipment and noise measuring as maximum distribution radius output, module Equipment is connected, and radius is maximally distributed for receiving, and the filtration module of medium filtering, filter are carried out based on maximum distribution radius selection The sub- equipment of ripple processing selects sub- equipment to be connected with Wiener filtering equipment and module respectively, for based on the filtration module of selection to the One filtering image carries out median filter process to obtain the second filtering image, and wherein median filter process is included for the first filtering Each pixel carries out following handle as target pixel points in image：With position of the target pixel points in the first filtering image The centre of form for putting filtration module alternatively takes out multiple pixels as multiple reference image vegetarian refreshments in the first filtering image, takes Maximum and minimum value in the pixel value of multiple reference image vegetarian refreshments is as pixel maximum and pixel minimum, to determine pixel The average value of maximum and pixel minimum is using as pixel average, for each reference image vegetarian refreshments, if its pixel value Less than pixel average, then its pixel value is replaced with 0, if its pixel value is more than or equal to pixel average, retain its pixel Value, finally exported the average value of the pixel value of multiple reference image vegetarian refreshments as the pixel value of target pixel points；

Human body detecting device, it is connected with modified medium filtering equipment, by pixel gray value in the second filtering image in human body In intensity value ranges all pixels point composition human body subgraph, when the pixel occupied by human body subgraph sum be more than etc. When presetted pixel point quantity, send and human body signal be present, otherwise, send no human body signal；

Infrared detection equipment, positioned at the side of sick bed bed board, for detecting whether there is object to pass through from the side of sick bed bed board, And when detecting that object passes through from the side of sick bed bed board, send object and skim over signal；

Spring equipment, be connected and be arranged on air cushion with Ling Yang SPCE061A chips, for receive fall trigger signal when, Air cushion is ejected into the side of sick bed from sick bed lower position level, and sends spring operation after the horizontal ejection of air cushion and completes letter Number；

Inflator pump, it is connected respectively with spring equipment, Ling Yang SPCE061A chips and air cushion, for receiving trigger signal of falling And when receiving spring operation completion signal, air cushion is inflated according to preset inflation capacity；

Air cushion, before spring equipment does not receive trigger signal of falling, remain in below sick bed and be in contraction state, use Protected in the human body that fallen after inflation to sick bed；

Solar energy detection device, on the exterior wall of building where ward, for detecting current solar energy intensity in real time；

Power supply unit, including solar powered device, battery, switching switch and electric pressure converter, switching switch respectively with too Positive energy detection device, solar powered device connect with battery, when the solar energy that the dump energy of battery is insufficient and current When intensity is optionally greater than preset strength, solar powered device is switched to be powered by solar powered device, electric pressure converter Connected with switching switch, using the 5V voltage conversions by input is switched by switching as 3.3V voltages, wherein solar powered device On the exterior wall of building where ward, solar powered device includes solar energy photovoltaic panel；

Wireless charging device, it is connected respectively with solar energy detection device and battery, when the dump energy of battery is insufficient and works as When preceding solar energy intensity is less than preset strength, establishes and connected to start wireless charging operation with neighbouring wireless charging terminal, Wireless charging device is also connected with electric pressure converter to realize voltage conversion；

Sound and light alarm equipment, it is connected with Ling Yang SPCE061A chips, including the sub- equipment of audible alarm and the sub- equipment of light alarm are used for Receive fall trigger signal or fall pre-warning signal when carry out corresponding sound and light alarm operation；

User input equipment, it is connected with MS storage cards, under the operation of user, preset content to be inputted into MS storage cards；

Ling Yang SPCE061A chips, set respectively with CCD sensing equipments, spring equipment, weight rate detection device, human testing It is standby to be connected with infrared detection equipment, after weight change pre-warning signal is received, start CCD sensing equipments, human body detecting device With infrared detection equipment, then human body signal be present and when receiving object and skimming over signal receiving, send triggering of falling Signal, when receiving no human body signal and receiving object and skim over signal, the pre-warning signal that falls is sent, and do not receive thing Part skims over signal and receives only and human body signal be present, sends the pre-warning signal that falls；

MS storage cards, for having prestored presetted pixel point quantity and default rate of change；

Civil power access interface, is connected with line, for receiving the Alternating Current Power Supply signal of line input；

Current transformer and sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, for A phases Current signal in circuit, B phase lines and C phase lines is sampled respectively；

Voltage sample circuit, it is connected with the A phase lines in line, B phase lines and C phase lines, for A phase lines, B phases Voltage signal in circuit and C phase lines is sampled respectively；

Current signal conditioning circuit, it is connected with current transformer and sample circuit, for carrying out signal condition to sampling current；

Voltage signal conditioning circuit, it is connected with voltage sample circuit, for carrying out signal condition to sampling voltage；

AD73360 chips, are connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, to the sampling electricity after conditioning Sampling voltage after stream and conditioning performs 16 A/D conversions respectively, obtains digital current signal and digital voltage signal, is also based on Digital current signal and digital voltage signal determine the virtual value of digital current signal and the virtual value of digital voltage signal；

Alternating Current Power Supply conversion equipment, it is connected with the A phase lines in line, B phase lines and C phase lines, for performing exchange Electricity arrives the conversion of direct current；

Display device, it is connected with AD73360 chips, virtual value and digital voltage signal for real-time display digital current signal Virtual value；

Wherein, module, which selects sub- equipment to carry out the filtration module of medium filtering based on maximum distribution radius selection, includes：Maximum point Cloth radius is bigger, and the filtration module of the progress medium filtering of selection is bigger, and maximum distribution radius is smaller, the carry out intermediate value filter of selection The filtration module of ripple is smaller；

Wherein, module selects filtration module selective in sub- equipment to include 3 × 3,5 × 5,7 × 7 and 9 × 9.