CN105943274A

CN105943274A - A clinical nursing ward bed

Info

Publication number: CN105943274A
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: 2016-09-21
Anticipated expiration: 2036-05-24
Also published as: CN107693282A; CN105943274B

Abstract

The invention provides a clinical nursing ward bed comprising a ward bed body and a safety maintenance system. The system comprises a spring apparatus, an air pump, a human body detection apparatus, an infrared detection apparatus, a weight change rate detection apparatus and a Sunplus SPCE 061A chip. The Sunplus SPCE 061A chip is connected with the spring apparatus, the air pump, the human body detection apparatus, the infrared detection apparatus and the weight change rate detection apparatus and is used for determining whether the human body detection apparatus and the infrared detection apparatus should be started according to the output of the weight change rate detection apparatus and determining whether a falling triggering signal should be sent to the spring apparatus and the air pump to eject and inflate an air cushion in the lower position of the ward bed body based on the output of the human body detection apparatus and the infrared detection apparatus. The ward bed can prevent patients from getting hurt when falling from the ward bed accidentally.

Description

Clinical care sick bed

Technical field

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

Background technology

For to be treated in hospital department etc. or for receiving the patient for the treatment of, sick bed is their master Wanting playground, hospital management side and families of patients to wish, patient can couch restfully stops on one's sick bed Cease or accept treatment, it is ensured that patient can the most normally tide over treatment phase and convalescence, with etc. Wait terminate treatment the date to facing.

But, if patient falls accidentally from sick bed, then the injury brought to patient is to estimate , this is because the state of an illness of some patients itself is easy to bring secondary injury because falling, such as one A little patients, itself be subject to is damaging of muscle or muscles and bones, if fallen again under sick bed, then aggravates The state of an illness of self, it is also possible to some patients fall during treating under sick bed, falling Time health on also with medical care device, such as breathing mask etc., if fallen, then probably because doctor Protect device to come off and cause patient to be in the boundary being in extreme danger.

Generally, patient is can to have a rest or receive treatment the most safely, is on the one hand Because having medical personnel incessantly to carry out medical and nursing work, or have families of patients and look after for a long time, Even if at night, it is also possible to arrange special nursing staff to retain one's original salary to patient and nurse, shorten The unmanned nurse time of patient, on the other hand also in that some patients still have certain action energy Power, to oneself having carried out self-specification, reduces the probability fallen from the bed.But, medical personnel, Families of patients or even the nursing staff retained one's original salary are artificial nurse after all, oneself also have a meal, have a rest time Between, it is impossible to carrying out patient uninterruptedly, the nurse of 24 hours, therefore, patient still exists certain The unmanned nurse time, meanwhile, also having some patients is to completely lose ability to act, for these patients, It is likely to stand up the generation resulting in pendant bed event the most unintentionally.

In order to avoid patient falls the generation of an event, in prior art, hospital management side also takes very The most positive measure, such as, transforms sick bed bed body, increases the height of guardrail, and in disease In bed bed body, some geofence equipment and emergence call equipments are set, fall the possibility of bed reducing patient Property, providing the pendant triggering device that bed is reported to the police for patient, these improved sick bed equipment are to a certain degree On decrease patient and fall the generation of an event.Meanwhile, hospital management side also takes some measures, example As increased the interaction with families of patients and communication, to reduce the time of the unmanned nurse of patient.

But, it is excessively simple that these hospital bed structural reforms existing make mechanism, owing to patient falls between bed continues Every the ofest short duration, above-mentioned detection and warning device accuracy of detection is the highest, detection efficiency is low, guardrail is high The increase of degree and the increase of nurse time can only reduce patient and fall the probability of bed, and cannot be avoided pendant bed Event occurs, and most importantly, lacks the fast reaction measure that patient falls an event in prior art With fast reaction equipment, it is impossible to an event that falls patient carries out fast reaction, it is impossible in time to patient's body Body quickly supports, and causes the ill effect that patient cannot be avoided to fall bed.

Accordingly, it would be desirable to a kind of new technical scheme with hospital bed fall arrest, it is possible to accurate, high Detect to effect the pendant bed event of patient, it is possible to quickly report to the police, additionally it is possible to use some emergent anti- Answer equipment that patient is given first aid to, thus be prevented effectively from patient and injured by shock, improve sick bed Intelligent level, maintains the medical care effect of hospital.

Summary of the invention

In order to solve the problems referred to above, the invention provides a kind of clinical care sick bed, existing by transformation Hospital bed bed body, existing hospital bed bed body introduces weight detection equipment, image inspection Measurement equipment and ray detector fall an event and accurately judge patient, introduce some early warning and set Standby report to the police accordingly, it is often more important that, also introduce targetedly urgent rescue equipment to pendant The patient body fallen effectively supports, thus improves the security performance of sick bed.

According to an aspect of the present invention, it is provided that a kind of clinical care sick bed, including sick bed and safety dimension Protecting system, described system includes that spring equipment, inflator pump, human body detecting device, infrared detection set Standby, weight rate detects equipment and Ling Yang SPCE061A chip, and Ling Yang SPCE061A chip divides Do not examine with spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight rate Measurement equipment connects, and determines whether to start human detection for output based on weight rate detection equipment Equipment and infrared detection equipment, be additionally operable to output based on human body detecting device and infrared detection sets Standby output determines whether that spring equipment and inflator pump send the triggering signal that falls to eject and to be full of It is positioned at the air cushion of sick bed lower position.

More specifically, in described clinical care sick bed, including: weight rate detection equipment, position In position, sick bed bed board downside, including weight detector and timer, weight detector is in real time Load weight on detection sick bed bed board, weight rate detection equipment output based on weight detector Output with timer determines the load weight rate of change on sick bed bed board, when load weight rate of change is big When default rate of change, send weight change early warning signal, when load weight rate of change is less than or equal to pre- If during rate of change, send weight change normal signal；CCD sensing equipment, is positioned at the one of sick bed bed board Side, ward bed side shoots with horizontal shooting direction to obtain high definition side image dorsad；

Spatial domain picture strengthens equipment, is connected with CCD sensing equipment to receive high definition side image, including straight Ash degree varitron equipment and histogram modification subset, direct greyscale transformation subset passes with CCD Sense equipment connects, for high definition side image performing direct greyscale transform process to obtain the first enhancing Image, histogram modification subset is connected with direct greyscale transformation subset, for receiving the first enhancing Image, and process to obtain the second enhancing image to the first enhancing image execution histogram modification, wherein, Directly greyscale transform process uses logarithmic function to transport each pixel value of high definition side image Calculating, each pixel value after computing forms the first enhancing image, histogram modification processes by changing Become histogrammic shape and change the gray scale layout of the first enhancing image to strengthen the first enhancing image, obtain Obtain the second enhancing image；Wiener filtering equipment, histogram modification strengthening equipment with spatial domain picture sets Standby connect, for receiving the second enhancing image, and strengthen second image perform the first Filtering Processing with Obtaining the first filtering image, wherein the first Filtering Processing is used for so that the first filtering image and second strengthens The mean square error of image is minimum to remove the speckle noise in the second enhancing image and white noise；Modified model Medium filtering equipment, is connected to obtain the first filtering image, including noise measuring with Wiener filtering equipment Subset, module select subset and Filtering Processing subset, noise measuring subset and Wiener filtering Equipment connects, by being analyzed determining each to the gray value of the pixel of the first filtering image The distribution radius in noise profile region, and by the maximum in the distribution radius in each noise profile region Exporting as maximum distribution radius, module selects subset to be connected with noise measuring subset, is used for connecing Receive maximum distribution radius, and select to carry out the filtration module of medium filtering, filter based on maximum distribution radius Ripple processes subset and selects subset to be connected with Wiener filtering equipment and module respectively, for based on selection Filtration module the first filtering image is carried out medium filtering process to obtain the second filtering image, wherein Medium filtering processes and includes clicking on as object pixel for each pixel in the first filtering image Row is following to be processed: using target pixel points position in the first filtering image as the filtration module selected The centre of form in the first filtering image, take out multiple pixel as multiple reference image vegetarian refreshments, take multiple ginseng Examine the maximum in the pixel value of pixel and minima using as pixel maximum and pixel minimum, Determine that the meansigma methods of pixel maximum and pixel minimum is as pixel average, to join for each Examine pixel, if its pixel value is less than pixel average, then replace its pixel value with 0, if its Pixel value is more than or equal to pixel average, then retain its pixel value, finally by multiple reference image vegetarian refreshments The meansigma methods of pixel value exports as the pixel value of target pixel points；Human body detecting device, with modified model Medium filtering equipment connects, by pixel gray value in the second filtering image in human body intensity value ranges All pixels composition human body subimage, when the sum of the pixel occupied by human body subimage is more than During equal to presetted pixel point quantity, send and there is human body signal, otherwise, send without human body signal；Red Outside line detection equipment, is positioned at the side of sick bed bed board, for detecting whether have object from sick bed bed board Side process, and detect object from the side of sick bed bed board through out-of-date, send object and skim over letter Number；Spring equipment, is connected with Ling Yang SPCE061A chip and is arranged on air cushion, for receiving To fall triggering signal time, air cushion is ejected into from sick bed lower position level the side of sick bed, and Air cushion level sends spring after ejecting and has operated signal；Inflator pump, respectively with spring equipment, Ling Yang SPCE061A chip and air cushion connect, for falling triggering signal and receive spring behaviour receiving When completing signal, according to preset inflation capacity, air cushion is inflated；Air cushion, at spring equipment not Before receiving the triggering signal that falls, remain in below sick bed and be in contraction state, for filling The human body that after gas falls sick bed is protected；Solar energy detection equipment, is positioned at place, ward building Exterior wall on, detect current solar energy intensity in real time；Power supply unit, including solar powered Device, accumulator, switching switch and electric pressure converter, switching switch respectively with solar energy detection equipment, Solar powered device and accumulator connect, when the solar energy that the dump energy of accumulator is not enough and current When intensity is optionally greater than preset strength, it is switched to solar powered device to be supplied by solar powered device Electricity, electric pressure converter is connected with switching switch, will be changed by the 5V voltage of switching switch input For 3.3V voltage, the most solar powered device is positioned on the exterior wall of place, ward building, and solar energy supplies Electrical part includes solar energy photovoltaic panel；Wireless charging device, respectively with solar energy detection equipment and electric power storage Pond connects, when the solar energy intensity that the dump energy of accumulator is not enough and current is less than preset strength, Set up with neighbouring wireless charging terminal to be connected and operate starting wireless charging, wireless charging device also with Electric pressure converter connects to realize voltage conversion；Sound and light alarm equipment, with Ling Yang SPCE061A chip Connect, including audible alarm subset and light warning subset for receive fall triggering signal or Fall early warning signal time carry out corresponding sound and light alarm operation；User input device, with MS storage card Connect, under the operation of user, in MS storage card, input preset content；Ling Yang SPCE061A Chip, respectively with CCD sensing equipment, spring equipment, weight rate detection equipment, people's health check-up Measurement equipment and infrared detection equipment connect, and after receiving weight change early warning signal, start CCD , there is human body signal receiving subsequently in sensing equipment, human body detecting device and infrared detection equipment And receive object when skimming over signal, send the triggering signal that falls, receiving without human body signal and connecing Receive object when skimming over signal, send the early warning signal that falls, and do not receive object skim over signal and Receive only and there is human body signal, send the early warning signal that falls；MS storage card, is used for prestoring Presetted pixel point quantity and default rate of change；Civil power access interface, is connected with line, is used for Receive the Alternating Current Power Supply signal of line input；Current transformer and sample circuit, with line In A phase line, B phase line and C phase line connect, for A phase line, B phase line and Current signal in C phase line is sampled respectively；A in voltage sample circuit, with line Phase line, B phase line and C phase line connect, for A phase line, B phase line and C phase line Voltage signal in road is sampled respectively；Current signal conditioning circuit, with current transformer and sampling Circuit connects, for sampling current is carried out signal condition；Voltage signal conditioning circuit, takes with voltage Sample circuit connects, for sampling voltage is carried out signal condition；AD73360 chip, respectively with electric current Signal conditioning circuit and voltage signal conditioning circuit connect, after the sampling current after conditioning and conditioning Sampling voltage performs 16 A/D conversions respectively, it is thus achieved that digital current signal and digital voltage signal, It is additionally based upon digital current signal and digital voltage signal determines virtual value and the numeral of digital current signal The virtual value of voltage signal；Alternating Current Power Supply conversion equipment, with the A phase line in line, B phase Circuit and C phase line connect, and are used for performing alternating current to galvanic conversion；Display device, with AD73360 chip connects, for virtual value and the digital voltage signal of real-time display digit current signal Virtual value；Wherein, module selects subset to select to carry out medium filtering based on maximum distribution radius Filtration module includes: maximum distribution radius is the biggest, and the filtration module carrying out medium filtering of selection is the biggest, Maximum distribution radius is the least, and the filtration module carrying out medium filtering of selection is the least；Wherein, module choosing Select filtration module selective in subset and include 3 × 3,5 × 5,7 × 7 and 9 × 9.

More specifically, in described clinical care sick bed: user input device is keyboard array.

More specifically, in described clinical care sick bed: infrared detection equipment includes infrared emitting Device and infrared receiver.

More specifically, in described clinical care sick bed: infrared detection equipment includes microcontroller.

More specifically, in described clinical care sick bed: microcontroller is 51 series monolithics, and It is connected with RF transmitter and infrared receiver respectively.

Accompanying drawing explanation

Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:

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

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

Detailed description of the invention

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

Armarium can be divided into 10 classes: ward nursing equipment (sick bed, go-cart, oxygen cylinder, gastric lavage Machine, needleless injector etc.)；Surgical apparatus (operation table, luminaire, operating theater instruments and various, Frame, stool, cabinet, also include microsurgical equipment)；Radiotherapy equipment (contact apparatus, shallow-layer Therapy apparatus, degree of depth therapy apparatus, accelerator, 60 Co60 radiotherapy unit 60s, radium or 137 caesium intracavitary therapies and after fill Device treatment etc.)；Nuclear medicine treatments equipment-Therapeutic Method has internal-radiation therapy, application therapy and colloid Treat three kinds；Physics and chemistry equipment (can be generally divided into phototherapy commercial affairs, electrotherapy apparatus, ultrasonic therapeutic and sulfur Treatment equipment 4 class)；(conventional has ruby laser, He-Ne to laser equipment medical laser generator Laser, carbon dioxide laser, argon laser and YAG laser etc.)；Dialysis treatment equipment is (often Artificial kidney have flat membranes type artificial kidney and the big class of cast artificial kidney two)；Body temperature freezing equipment (is partly led Body cryoprobe, gas cryoprobe and solid cryoprobe etc.)；First-aid apparatus is (defibrillation pacing devices, artificial Respirator, ultrasound atomizer etc.)；Other therapeutic equipment (hyperbaric oxygen chamber, the chrome device of ophthalmic high frequency, Locking magnet, vitreous cutter, blood adult's separator etc.).This broadly falls into, and each section is special to be controlled Treatment equipment, the most also can be separately divided into a class.

Sick bed is armarium most basic in hospital, modal, the medical time of most patients and The nurse time tides over the most on one's sick bed, but, due to reason and the unmanned nursing of sick bed structure itself The existence of time, patient falls an event and happens occasionally, and causes bigger injury to patient, except band Serve outside the pain of injury on shock, also likely expand the state of an illness of patient, to the recovery of patient and Treatment adversely affects.

Currently, hospital management side the most actively take some measures patient is fallen an event carry out prevention and Avoid, such as, reinforce bed body, increase source of early warning, reduce the unmanned nursing time, but, on the one hand These measures and equipment are excessively simple, and detection and early warning are inefficient, on the other hand, lack patient Hold up the urgent rescue equipment of patient body during pendant bed, fall an event also cannot keep away even if having detected patient Exempt from patient and fall the consequence that bed causes, do 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, utilizes existing doctor Institute's sick bed bed body, carries out structure of modification and upgrading to it, adds various detection equipment and source of early warning Patient falls an event accurately identify, particularly critical, also add effective emergency reaction Equipment carries out urgent rescue when patient falls bed, thus avoids pendant bed event and damage to patient.

Fig. 1 is the block diagram according to the clinical care sick bed shown in embodiment of the present invention, including Sick bed and security maintenance system, described system include spring equipment, inflator pump, human body detecting device, Infrared detection equipment, weight rate detection equipment and Ling Yang SPCE061A chip, Ling Yang SPCE061A chip sets with spring equipment, inflator pump, human body detecting device, infrared detection respectively Standby, weight rate detection equipment connects, and determines for output based on weight rate detection equipment Whether start human body detecting device and infrared detection equipment, be additionally operable to based on human body detecting device defeated Go out the output with infrared detection equipment and determine whether that spring equipment and inflator pump send triggering of falling Signal is to eject and the full air cushion being positioned at sick bed lower position.

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

Described system includes: weight rate detection equipment, is positioned at position, sick bed bed board downside, bag Include weight detector and timer, weight detector load weight on detection sick bed bed board in real time Amount, the output of weight rate detection equipment output based on weight detector and timer determines sick bed Load weight rate of change on bed board, when load weight rate of change is more than when presetting rate of change, sends weight Amount change early warning signal, when load weight rate of change is less than or equal to when presetting rate of change, sends weight and becomes Change normal signal.

Described system includes: CCD sensing equipment, is positioned at the side of sick bed bed board, dorsad ward bed side Shoot with horizontal shooting direction to obtain high definition side image；Spatial domain picture strengthens equipment, with CCD Sensing equipment connects to receive high definition side image, repaiies including direct greyscale transformation subset and rectangular histogram Positive subset, direct greyscale transformation subset is connected with CCD sensing equipment, for high definition side Image performs direct greyscale transform process and strengthens image to obtain first, and histogram modification subset is with straight Ash degree varitron equipment connects, and for receiving the first enhancing image, and performs the first enhancing image Histogram modification processes to obtain the second enhancing image, and wherein, direct greyscale transform process uses logarithm Function carries out computing to each pixel value of high definition side image, by each pixel value after computing Composition the first enhancing image, histogram modification processes and changes the first increasing by the histogrammic shape of change The gray scale layout of strong image is to strengthen the first enhancing image, it is thus achieved that second strengthens image.

Described system includes: Wiener filtering equipment, with histogram modification that spatial domain picture strengthens equipment Equipment connects, and for receiving the second enhancing image, and the second enhancing image is performed the first Filtering Processing To obtain the first filtering image, wherein the first Filtering Processing is used for so that the first filtering image and second increases The mean square error of strong image is minimum to remove the speckle noise in the second enhancing image and white noise.

Described system includes: modified model medium filtering equipment, is connected with Wiener filtering equipment to obtain One filtering image, selects subset and Filtering Processing subset including noise measuring subset, module, Noise measuring subset is connected with Wiener filtering equipment, by the ash of the pixel to the first filtering image Angle value is analyzed determining the distribution radius in each noise profile region, and by each noise profile Maximum in the distribution radius in region exports as maximum distribution radius, and module selects subset and makes an uproar Sound detection subset connects, and is used for receiving maximum distribution radius, and based on maximum distribution radius select into The filtration module of row medium filtering, Filtering Processing subset selects with Wiener filtering equipment and module respectively Subset connects, for the first filtering image being carried out medium filtering process based on the filtration module selected To obtain the second filtering image, wherein medium filtering process include in the first filtering image each Pixel carries out following process as target pixel points: with target pixel points in the first filtering image Multiple pixel conduct is taken out as the centre of form of the filtration module selected in the first filtering image in position Multiple reference image vegetarian refreshments, take the maximum in the pixel value of multiple reference image vegetarian refreshments and minima using as Pixel maximum and pixel minimum, determine the meansigma methods of pixel maximum and pixel minimum using as Pixel average, for each reference image vegetarian refreshments, if its pixel value is less than pixel average, then Replace its pixel value with 0, if its pixel value is more than or equal to pixel average, then retain its pixel value, Finally the meansigma methods of the pixel value of multiple reference image vegetarian refreshments is exported as the pixel value of target pixel points.

Described system includes: human body detecting device, is connected with modified model medium filtering equipment, by second The pixel gray value all pixels composition human body in human body intensity value ranges in filtering image Image, when the sum of the pixel occupied by human body subimage is more than or equal to presetted pixel point quantity, Send and there is human body signal, otherwise, send without human body signal.

Described system includes: infrared detection equipment, is positioned at the side of sick bed bed board, for detection is No have the object side process from sick bed bed board, and the object side warp from sick bed bed board detected Out-of-date, send object and skim over signal.

Described system includes: spring equipment, is connected with Ling Yang SPCE061A chip and is arranged on air cushion On, for receive fall triggering signal time, air cushion is ejected into disease from sick bed lower position level The side of bed, and send spring and operated signal after air cushion level ejects；Inflator pump, respectively with Spring equipment, Ling Yang SPCE061A chip and air cushion connect, for receiving the triggering signal that falls And receive spring when having operated signal, according to preset inflation capacity, air cushion is inflated；Air cushion, Before spring equipment does not receives the triggering signal that falls, remain in below sick bed and be in contraction-like State, protects for the human body that falls sick bed after inflation.

Described system includes: solar energy detection equipment, is positioned on the exterior wall of place, ward building, is used for Detect current solar energy intensity in real time；Power supply unit, including solar powered device, accumulator, Switching switch and electric pressure converter, switching switch detects equipment, solar energy electric supplier with solar energy respectively Part and accumulator connect, and the solar energy intensity not enough and current when the dump energy of accumulator is optionally greater than During preset strength, being switched to solar powered device to be powered by solar powered device, voltage is changed Device is connected with switching switch, so that 3.3V voltage will be converted to by the 5V voltage of switching switch input, The most solar powered device is positioned on the exterior wall of place, ward building, and solar powered device includes too Sun can photovoltaic panel.

Described system includes: wireless charging device, is connected with solar energy detection equipment and accumulator respectively, When the solar energy intensity that the dump energy of accumulator is not enough and current is less than preset strength, with neighbouring Wireless charging terminal is set up and is connected to start wireless charging operation, and wireless charging device is also changed with voltage Device connects to realize voltage conversion.

Described system includes: sound and light alarm equipment, is connected, including sound with Ling Yang SPCE061A chip Sound warning subset and light warning subset are for receiving fall triggering signal or early warning of falling letter Number time carry out corresponding sound and light alarm operation.

Described system includes: user input device, is connected with MS storage card, for the behaviour user Under work, in MS storage card, input preset content.

Described system includes: Ling Yang SPCE061A chip, respectively with CCD sensing equipment, spring Equipment, weight rate detection equipment, human body detecting device and infrared detection equipment connect, when connecing After receiving weight change early warning signal, start CCD sensing equipment, human body detecting device and infrared ray inspection Measurement equipment, subsequently receive exist human body signal and receive object skim over signal time, send and fall Trigger signal, receive without human body signal and receive object skim over signal time, send early warning of falling Signal, and do not receive object and skim over signal and receive only and there is human body signal, send fall pre- Alert signal；MS storage card, is used for having prestored presetted pixel point quantity and default rate of change.

Described system includes: civil power access interface, is connected with line, is used for receiving line The Alternating Current Power Supply signal of input；A phase line in current transformer and sample circuit, with line, B phase line and C phase line connect, for the electricity in A phase line, B phase line and C phase line Stream signal is sampled respectively；A phase line in voltage sample circuit, with line, B phase line Road and C phase line connect, for the voltage signal in A phase line, B phase line and C phase line It is sampled respectively；Current signal conditioning circuit, is connected with current transformer and sample circuit, is used for Sampling current is carried out signal condition；Voltage signal conditioning circuit, is connected with voltage sample circuit, uses In sampling voltage is carried out signal condition.

Described system includes: AD73360 chip, respectively with current signal conditioning circuit and voltage signal Modulate circuit connects, and the sampling voltage after the sampling current after conditioning and conditioning is performed 16 respectively A/D changes, it is thus achieved that digital current signal and digital voltage signal, is additionally based upon digital current signal sum Word voltage signal determines the virtual value of digital current signal and the virtual value of digital voltage signal.

Described system includes: Alternating Current Power Supply conversion equipment, with the A phase line in line, B phase Circuit and C phase line connect, and are used for performing alternating current to galvanic conversion；Display device, with AD73360 chip connects, for virtual value and the digital voltage signal of real-time display digit current signal Virtual value；

Wherein, module selects subset to select to carry out the filtering mould of medium filtering based on maximum distribution radius Block includes: maximum distribution radius is the biggest, and the filtration module carrying out medium filtering of selection is the biggest, maximum Distribution radius is the least, and the filtration module carrying out medium filtering of selection is the least；Wherein, module selects son Filtration module selective in equipment includes 3 × 3,5 × 5, and 7 × 7 and 9 × 9.

Alternatively, in described platform: user input device is keyboard array；Infrared detection equipment Including RF transmitter and infrared receiver；Infrared detection equipment includes microcontroller；And Microcontroller is 51 series monolithics, and is connected with RF transmitter and infrared receiver respectively.

It addition, wave filter, as the term suggests, it is the device that ripple is filtered." ripple " be one non- Physical concept the most widely, at electronic technology field, " ripple " is narrowly confined to refer in particular to describe respectively Plant the process of the value fluctuations in time of physical quantity.The effect by various kinds of sensors of this process, It is converted into the time function of voltage or electric current, the time waveform of the most various physical quantitys, or claims For signal.Because the independent variable time is continuous value, so referred to as continuous time signal, again It is referred to as analogue signal habitually.

Along with the generation of digital electronic computer technology with develop rapidly, for the ease of computer to letter Number process, create and under sampling theorem instructs, continuous time signal is transformed into discrete time letter Number complete theory and method.It is to say, can only use original analog signal when series of discrete Between sample value in coordinate points express primary signal and do not lose any information, ripple, waveform, signal this Since what a little concepts were expressed is the change of various physical quantitys in objective world, it is exactly that modern society relies naturally Carrier with the various information of existence.Information needs to propagate, and lean on is exactly the transmission of waveshape signal.Letter Number it generation, change, each link of transmitting be likely to be due to environment and the existence of interference and Distortion, the most in quite a number of cases, this distortion is the most serious, causes signal and is taken The information of band is embedded in the middle of noise dearly.In order to filter these noises, recover signal originally, Need to use various wave filter to be filtered processing.

Use the clinical care sick bed of the present invention, cannot be for the disease fallen from sick bed for prior art People carries out the technical problem of urgent rescue, carries out detection knot by adding high-precision multiple detection equipment Fruit is comprehensive to be analyzed, and effectively to judge whether patient falls, the warning device being additionally added necessity is carried out Report to the police, be also added into special emergency reaction equipment to carry out urgent rescue when patient falls simultaneously, Thus embody the humane rescue spirit of hospital.

Although it is understood that the present invention discloses as above with preferred embodiment, but above-mentioned enforcement Example is not limited to the present invention.For any those of ordinary skill in the art, without departing from Under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above to the technology of the present invention Scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore, Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to above example Any simple modification, equivalent variations and the modification done, all still falls within technical solution of the present invention protection In the range of.

Claims

1. a clinical care sick bed, including sick bed and security maintenance system, it is characterised in that institute The system of stating includes that spring equipment, inflator pump, human body detecting device, infrared detection equipment, weight become Rate detection equipment and Ling Yang SPCE061A chip, Ling Yang SPCE061A chip sets with spring respectively Standby, inflator pump, human body detecting device, infrared detection equipment, weight rate detection equipment connects, Determine whether to start human body detecting device and infrared for output based on weight rate detection equipment Line detection equipment, the output being additionally operable to output based on human body detecting device and infrared detection equipment is true Determine whether send, to spring equipment and inflator pump, the triggering signal that falls to be positioned under sick bed to eject and to be full of The air cushion that orientation is put.

2. clinical care sick bed as claimed in claim 1, it is characterised in that described system includes:

Weight rate detection equipment, is positioned at position, sick bed bed board downside, including weight detector and Timer, weight detector load weight on detection sick bed bed board in real time, weight rate is examined The output of measurement equipment output based on weight detector and timer determines the load weight on sick bed bed board Quantitative change rate, when load weight rate of change is more than when presetting rate of change, sends weight change early warning signal, When load weight rate of change is less than or equal to when presetting rate of change, send weight change normal signal；

CCD sensing equipment, is positioned at the side of sick bed bed board, and ward bed side is with horizontal shooting direction dorsad Shooting is to obtain high definition side image；

Spatial domain picture strengthens equipment, is connected with CCD sensing equipment to receive high definition side image, bag Include direct greyscale transformation subset and histogram modification subset, direct greyscale transformation subset and CCD Sensing equipment connects, for high definition side image performing direct greyscale transform process to obtain the first increasing Strong image, histogram modification subset is connected with direct greyscale transformation subset, for receiving the first increasing Strong image, and process to obtain the second enhancing image to the first enhancing image execution histogram modification, its In, direct greyscale transform process uses logarithmic function to carry out each pixel value of high definition side image Computing, forms the first enhancing image by each pixel value after computing, and histogram modification processes to be passed through Change histogrammic shape and change the gray scale layout of the first enhancing image to strengthen the first enhancing image, Obtain the second enhancing image；

Wiener filtering equipment, the histogram modification subset strengthening equipment with spatial domain picture is connected, and is used for Receive the second enhancing image, and the second enhancing image is performed the first Filtering Processing to obtain the first filtering Image, wherein the first Filtering Processing is for making the first filtering image and second strengthen the mean square error of image Difference is minimum to remove the speckle noise in the second enhancing image and white noise；

Modified model medium filtering equipment, is connected to obtain the first filtering image with Wiener filtering equipment, bag Include noise measuring subset, module selects subset and Filtering Processing subset, noise measuring subset Be connected with Wiener filtering equipment, by the gray value of the pixel of the first filtering image is analyzed with Determine the distribution radius in each noise profile region, and by the distribution radius in each noise profile region In maximum export as maximum distribution radius, module selects subset and noise measuring subset even Connect, be used for receiving maximum distribution radius, and select to carry out the filter of medium filtering based on maximum distribution radius Mode block, Filtering Processing subset selects subset to be connected with Wiener filtering equipment and module respectively, uses Process to obtain the second filter in the first filtering image being carried out medium filtering based on the filtration module selected Ripple image, wherein medium filtering processes and includes for each pixel in the first filtering image as mesh Mark pixel carries out following process: using target pixel points position in the first filtering image as selection The centre of form of filtration module in the first filtering image, take out multiple pixel as multiple reference pixels Point, take the maximum in the pixel value of multiple reference image vegetarian refreshments and minima using as pixel maximum and Pixel minimum, determine the meansigma methods of pixel maximum and pixel minimum using as pixel average, For each reference image vegetarian refreshments, if its pixel value is less than pixel average, then replace its picture with 0 Element value, if its pixel value is more than or equal to pixel average, then retains its pixel value, finally by multiple The meansigma methods of the pixel value of reference image vegetarian refreshments exports as the pixel value of target pixel points；

Human body detecting device, is connected with modified model medium filtering equipment, by pixel in the second filtering image The point gray value all pixels composition human body subimage in human body intensity value ranges, when human body subgraph When being more than or equal to presetted pixel point quantity as the sum of occupied pixel, send and there is human body letter Number, otherwise, send without human body signal；

Infrared detection equipment, is positioned at the side of sick bed bed board, for detecting whether have object from sick bed The side process of bed board, and detect object from the side of sick bed bed board through out-of-date, send object Skim over signal；

Spring equipment, is connected with Ling Yang SPCE061A chip and is arranged on air cushion, for receiving To fall triggering signal time, air cushion is ejected into from sick bed lower position level the side of sick bed, and Air cushion level sends spring after ejecting and has operated signal；

Inflator pump, is connected with spring equipment, Ling Yang SPCE061A chip and air cushion respectively, is used for Receiving and falling triggering signal and receive spring when having operated signal, according to preset inflation capacity pair Air cushion is inflated；

Air cushion, before spring equipment does not receives the triggering signal that falls, remain in below sick bed and It is in contraction state, protects for the human body that after inflation, sick bed fallen；

Solar energy detection equipment, is positioned on the exterior wall of place, ward building, current for detection in real time Solar energy intensity；

Power supply unit, including solar powered device, accumulator, switching switch and electric pressure converter, Switching switch is connected with solar energy detection equipment, solar powered device and accumulator respectively, works as electric power storage When not enough the and current solar energy intensity of the dump energy in pond is optionally greater than preset strength, it is switched to the sun Energy power supply device is to be powered by solar powered device, and electric pressure converter is connected with switching switch, to incite somebody to action Being converted to 3.3V voltage by the 5V voltage of switching switch input, the most solar powered device is positioned at On the exterior wall of place, ward building, solar powered device includes solar energy photovoltaic panel；

Wireless charging device, is connected with solar energy detection equipment and accumulator respectively, when remaining of accumulator When not enough the and current solar energy intensity of remaining electricity is less than preset strength, with neighbouring wireless charging terminal Setting up and connect to start wireless charging operation, wireless charging device is also connected with electric pressure converter to realize Voltage is changed；

Sound and light alarm equipment, is connected with Ling Yang SPCE061A chip, including audible alarm subset and Light warning subset for receive fall triggering signal or fall early warning signal time carry out corresponding Sound and light alarm operates；

User input device, is connected with MS storage card, under the operation of user, deposits to MS Card storage inputs preset content；

Ling Yang SPCE061A chip, respectively with CCD sensing equipment, spring equipment, weight change Rate detection equipment, human body detecting device and infrared detection equipment connect, when receiving weight change early warning After signal, start CCD sensing equipment, human body detecting device and infrared detection equipment, exist subsequently Receive and there is human body signal and receive object when skimming over signal, send the triggering signal that falls, connecing Receive without human body signal and receive object skim over signal time, send the early warning signal that falls, and do not connect Receive object to skim over signal and receive only and there is human body signal, send the early warning signal that falls；

MS storage card, is used 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 of line input Signal；

A phase line, B phase line and C phase in current transformer and sample circuit, with line Connection, for carrying out respectively the current signal in A phase line, B phase line and C phase line Sampling；

Voltage sample circuit, is connected with the A phase line in line, B phase line and C phase line, For the voltage signal in A phase line, B phase line and C phase line is sampled respectively；

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

Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal Conditioning；

AD73360 chip, is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, Sampling voltage after sampling current after conditioning and conditioning is performed respectively 16 A/D conversions, it is thus achieved that Digital current signal and digital voltage signal, be additionally based upon digital current signal and digital voltage signal determines The virtual value of digital current signal and the virtual value of digital voltage signal；

Alternating Current Power Supply conversion equipment, with the A phase line in line, B phase line and C phase line Connect, be used for performing alternating current to galvanic conversion；

Display device, is connected with AD73360 chip, effective for real-time display digit current signal Value and the virtual value of digital voltage signal；

Wherein, module selects subset to select to carry out the filtering mould of medium filtering based on maximum distribution radius Block includes: maximum distribution radius is the biggest, and the filtration module carrying out medium filtering of selection is the biggest, maximum Distribution radius is the least, and the filtration module carrying out medium filtering of selection is the least；

Wherein, module selects selective filtration module in subset to include 3 × 3, and 5 × 5,7 × 7 With 9 × 9.

3. clinical care sick bed as claimed in claim 2, it is characterised in that:

User input device is keyboard array.

4. clinical care sick bed as claimed in claim 2, it is characterised in that:

Infrared detection equipment includes RF transmitter and infrared receiver.

5. clinical care sick bed as claimed in claim 4, it is characterised in that:

Infrared detection equipment includes microcontroller.

6. clinical care sick bed as claimed in claim 5, it is characterised in that:

Microcontroller is 51 series monolithics, and respectively with RF transmitter and infrared receiver Connect.