CN107478271B - Data acquisition device for evaluating ageing suitability of old people day care facility - Google Patents

Data acquisition device for evaluating ageing suitability of old people day care facility Download PDF

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CN107478271B
CN107478271B CN201710681476.XA CN201710681476A CN107478271B CN 107478271 B CN107478271 B CN 107478271B CN 201710681476 A CN201710681476 A CN 201710681476A CN 107478271 B CN107478271 B CN 107478271B
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pressure value
data acquisition
acquisition device
dimensional scanner
data
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CN107478271A (en
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卫大可
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/08—Helicopters with two or more rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00—Equipment not otherwise provided for
    • B64D47/08—Arrangements of cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
    • G05D1/08—Control of attitude, i.e. control of roll, pitch, or yaw
    • G05D1/0808—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft
    • G05D1/0816—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft to ensure stability
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/30—UAVs specially adapted for particular uses or applications for imaging, photography or videography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2201/00—UAVs characterised by their flight controls
    • B64U2201/20—Remote controls

Abstract

The invention discloses a data acquisition device for evaluating the adaptability of an old person care facility in the daytime, which comprises: the four-axis aircraft moves to a proper position to hover; and the three-dimensional scanner is installed on the four-axis aircraft and acquires data when hovering. The quadcopter can hover at any position, so that data can be acquired at the position; the collection is simple, convenient and easy to operate.

Description

Data acquisition device for evaluating ageing suitability of old people day care facility
Technical Field
The invention relates to the technical field of data acquisition, in particular to a data acquisition device for evaluating the adaptability of an old person care facility in the daytime.
Background
The daytime care facility for the old people is a facility for providing daytime services such as dietary supply, personal care, health care and rehabilitation, entertainment, transportation and the like for the elderly who are mainly the semi-disabled and elderly who cannot take care of the daily lives completely and need certain care in daily life.
The interior space of an elderly daytime care facility includes: living rooms (restrooms, restaurants, toilets, bathrooms); public activity rooms (rooms for performing entertainment activities such as art, chess, card, fitness, entertainment, watching movies, and the like); rehabilitation and medical rooms (physical therapy rooms, operating rooms, and medical service rooms for developing prevention, health care, and the like); a management service room (duty, check-in registration, office, kitchen, laundry, etc.); traffic spaces (building entrances and exits, hallways, stairways, elevators, corridors, etc.). Factors related to the environment of facilities attended to the elderly during the day are mainly in the aspects of construction equipment, such as water supply and drainage, heating ventilation and ventilation air conditioning, building electrical, intelligent systems, fire prevention and the like.
At present, most of the evaluation of the daily care facilities of the old is subjective evaluation method, the evaluation result is different from person to person, the evaluation is quantified by AHP (analytic hierarchy process), the process is complex, and the actual operation is not easy. Moreover, subjective evaluation cannot acquire a large amount of accurate data directly related to the building space environment, such as the length, width and height of a room, and building physical indexes such as sound, light and heat. If these data cannot be obtained, quantitative evaluation of the space environment of the annual daily care facility cannot be performed. If the data are inquired through a network, the error is large, the hysteresis is strong, and great trouble is brought to the accurate evaluation of the day care facility of the old. In order to solve the technical problem, a data acquisition device capable of acquiring data of the life area of the elderly is needed.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical defects, the invention adopts a technical scheme that a data acquisition device for acquiring spatial environment data is provided, wherein the data acquisition device is suitable for a living room, a public activity room, a rehabilitation and medical care room, a management service room and a traffic space of a daily care facility of an old person, and comprises:
the four-axis aircraft moves to a proper position to hover;
and the three-dimensional scanner is installed on the four-axis aircraft and acquires data when hovering.
Preferably, the quadrotor is provided with an annular track, and the three-dimensional scanner is mounted on the annular track and moves along the annular track.
Preferably, the four-axis aircraft body is a cylinder, and the four cantilevers are uniformly distributed on two sides of the body; the cantilever is perpendicular to the axis of the cylinder, one end of the cantilever is fixed on the machine body, and the other end of the cantilever is fixed with the rotor wing.
Preferably, the connecting lines between the two rotors with different opposite angles are perpendicular to each other, and the intersection point is on the axis of the cylinder.
Preferably, the endless track includes: the outer groove wall, the inner groove wall and the first outer teeth; the outer groove wall and the inner groove wall form an annular groove which is formed on the machine body in a surrounding mode; the annular grooves are two, notches of the two annular grooves are opposite, and the two annular grooves are distributed on two sides of the first outer teeth.
Preferably, the three-dimensional scanner has a second outer tooth, and the first outer tooth is meshed with the second outer tooth.
Preferably, the second outer gear is fixed with the three-dimensional scanner through a middle shaft, and the second outer gear is rotatably connected with the middle shaft; two ends of the middle shaft penetrate out of the three-dimensional scanner and are respectively clamped into the two annular grooves.
Preferably, a piezoelectric ceramic plate is attached to the cantilever; the analysis module is connected with the piezoelectric ceramic piece, measures potential changes at two ends of the piezoelectric ceramic piece at a fixed frequency and converts the potential changes into pressure values; and the central processing unit is connected with the analysis module, receives the pressure value and adjusts the rotor output of the four-axis aircraft.
Preferably, the data acquisition device further comprises a calculation module, which is connected to the analysis module, and receives the pressure value and calculates the predicted pressure value at the next moment according to the change of the pressure value.
Preferably, the calculation formula of the predicted pressure value in the calculation module is as follows:
Figure BDA0001375647330000031
in the formula, xkDetermined by the following equation:
Figure BDA0001375647330000032
Figure BDA0001375647330000033
Figure BDA0001375647330000034
in the above formula, i is the serial number of the cantilever, j is the serial number of the pressure value, k is the serial number of the latest measured pressure value, T is the threshold value, xk+1To predict the pressure value, xjThe combined pressure value x of the two cantilevers at the same sidekIs the latest combined pressure value, xijFor the jth pressure value, Δ x, to which the ith boom is subjectedijIs a pressure value xijDeviation from the trend, MijIs a pressure value xijA threshold coefficient based on the deviation.
Compared with the prior art, the invention has the beneficial effects that: the data acquisition device is used for evaluating the ageing suitability of an aged person daytime care facility, and the quadrotor can hover at any position so as to acquire data at the position; thus, the collection is simple, convenient and easy to operate; the positioning module is connected with the wireless module and used for positioning the position of the quadcopter; when the quadcopter flies, the hollow channel can reduce the wind resistance borne by the quadcopter, thereby reducing the energy consumption; and the blown air can be detected, and the data such as air quality in the four-axis aircraft flight area can be confirmed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic top view of a data acquisition device of the present invention;
FIG. 2 is a schematic side view of a data acquisition device of the present invention;
FIG. 3 is a schematic view of the circular orbit of the data acquisition device of the present invention in combination with a three-dimensional scanner;
FIG. 4 is a binary matrix diagram of the quantitative evaluation method for environmental suitability of the daily care facility of the elderly according to the invention.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 3, a data collecting device for evaluating the aging suitability of an elderly daytime care facility comprises a quadcopter 1 and a three-dimensional scanner 2, so that the quadcopter can be moved to a proper position for collecting data. The quadcopter can hover at any position, so that data can be acquired at the position; the collection is simple, convenient and easy to operate.
The three-dimensional scanner is connected with the quadcopter through a rotating assembly, so that the three-dimensional scanner can select a proper angle for three-dimensional scanning through rotation.
The rotating assembly is not shown in the drawings, but is relatively simple to implement, for example, two shafts can be rotated in combination with each other, so that the three-dimensional scanner is fixed at the end of the second shaft, the first shaft rotates to drive the three-dimensional scanner to rotate in the direction perpendicular to the axis of the first shaft, the second shaft rotates to drive the three-dimensional scanner to rotate in the direction perpendicular to the axis of the second shaft, and thus, the arbitrary steering of the three-dimensional scanner is realized.
When scanning a building, it is necessary to scan not only the appearance of the building but also the interior of the building. When scanning the inside of building, the relative position of general three-dimensional scanning appearance and four shaft air vehicle is fixed, and three-dimensional scanning appearance is when scanning, and scanning effect is best when generally just treating the object of scanning, and fixed position can lead to four shaft air vehicle to shelter from three-dimensional scanning appearance's field of vision, and this kind of shelters from can not eliminate completely through four shaft air vehicle self rotation, for example, when three-dimensional scanning appearance is installed in four shaft air vehicle upper end, can't scan the ground of four shaft air vehicle lower part, otherwise, when three-dimensional scanning appearance was installed at four shaft air vehicle lower extreme, also can't scan the ceiling of four shaft air vehicle upper portion. In addition, for the type of shielding which can be eliminated through the rotation of the four-axis aircraft, the three-dimensional scanner cannot be over against the type of shielding during scanning, so that the scanning truth is reduced.
Be provided with annular orbit 3 on the four shaft air vehicle, three-dimensional scanner installs on the annular orbit, can follow the annular orbit removes, like this, can remove as required four shaft air vehicle's upper end, both sides or lower extreme to scan each part of building.
The three-dimensional scanner is installed on the annular track of the quadcopter through the rotating assembly, so that the three-dimensional scanner is fixed on the annular track of the quadcopter and then can rotate the lens of the three-dimensional scanner according to actual needs, so that the lens is opposite to an object to be scanned, and the best rotating effect is achieved.
When an object (building) needs to be scanned, the quadrotor can be controlled to fly to the position near the object to be scanned and hover; and then opening the three-dimensional scanner, if the object to be scanned is shielded by the four-axis aircraft at the position, moving the three-dimensional scanner along the annular track until the four-axis aircraft does not shield the object to be scanned, adjusting the flight attitude of the four-axis aircraft, and enabling the object to be scanned to be rewound (when the three-dimensional scanner moves on the annular track, the center of gravity of the four-axis aircraft is damaged, if the center of gravity is changed slightly, the four-axis aircraft can automatically adjust the flight attitude, if the center of gravity is changed greatly, the four-axis aircraft needs to be subjected to flight attitude adjustment through external operation), and after the three-dimensional scanner is rewound, rotating the three-dimensional scanner through a rotating component, so that a lens of the three-dimensional scanner is over against the object to be scanned to scan. In addition, the path of the quadcopter can be planned in advance before the object (building) is scanned, then the quadcopter can automatically scan the object (building) according to the planned path, the scanned data can be stored in a memory of the quadcopter, and the quadcopter can be operated in real time through a WiFi module or scan work is carried out to receive the scanned data in real time.
The four-axis aircraft is provided with the USB interface 4 which can be communicated with external storage equipment or a data line, so that when the four-axis aircraft is communicated with the data line, scanning data can be rapidly transmitted through the data line, and the three-dimensional scanner can perform fine scanning.
The industry of three-dimensional scanners is currently developing rapidly, and three-dimensional scanners are used to detect and analyze the shape (geometric structure) and appearance data (such as color, surface albedo, etc.) of objects or environments in the world. The collected data is often used to perform three-dimensional reconstruction calculations to create a digital model of the actual object in the virtual world. These models have a wide range of applications, such as industrial design, flaw detection, reverse engineering, robot guidance, geomorphologic measurements, medical information, biological information, criminal identification, digital cultural relic reservation, film production, game creation material, and so on. The manufacture of the three-dimensional scanner does not depend on a single technology, and various reconstruction technologies have advantages and disadvantages, and the cost and the selling price are also divided into high and low.
The three-dimensional laser scanning technology is also called as a real scene replication technology, and by utilizing the principle of laser ranging, information such as three-dimensional coordinates, reflectivity, texture and the like of a large number of dense points on the surface of a measured object is recorded, so that three-dimensional models, lines, surfaces, bodies and various drawing data of the measured object can be rapidly reconstructed.
The technical principle of three-dimensional laser scanning aims at that the existing three-dimensional object (sample or model) can quickly measure the outline set data of the object under the condition of no technical document, and the outline set data is constructed, edited and modified to generate a curved surface digital model with a general output format.
Example 2
As described above, the data collecting device of the present embodiment is different from the above described data collecting device in that the four-axis aircraft is provided with the wireless module 5, so that data can be transmitted to and from an external remote controller or a data center through the wireless module. Therefore, the flight state of the quadcopter or the three-dimensional scanner and the like can be controlled through the remote controller; the scanning data of the three-dimensional scanner can also be transmitted to a data center for further processing.
Still be provided with orientation module 6 on the four shaft air vehicle, orientation module with wireless module connects, and is right four shaft air vehicle's position is fixed a position.
Example 3
As described above, the difference between the present embodiment and the data acquisition device is that the quadcopter is further provided with a wind and temperature measurement module, and the wind and temperature measurement module is connected to the wireless module to measure the temperature and the wind speed of the quadcopter at the position.
The wind measuring and temperature measuring module comprises a driving processing unit (not shown in the figure) and an ultrasonic sensor 7, wherein the ultrasonic sensor consists of two groups of ultrasonic receivers and transmitters which are perpendicular to each other, firstly, the driving processing unit sends a data collecting instruction to the ultrasonic sensor, the ultrasonic sensor transmits collected data information to the driving processing unit, the driving processing unit processes the data to obtain wind speed and direction temperature data information, transmits the information to the wireless module, and the wireless module sends the information out.
The wind and temperature measuring module is an MSP430 type ultrasonic receiving and transmitting processing chip.
When the four-axis aircraft flies vertically, a positioning module acquires a value of a certain height, meanwhile, a transmitter in the wind measuring and temperature measuring module transmits ultrasonic waves, and a receiver acquires the ultrasonic waves and then processes the ultrasonic waves to obtain wind speed and wind direction temperature data information. The wind measuring and temperature measuring module and the positioning module are transmitted out through the wireless module.
Example 4
As described above, this embodiment is different from the above data acquisition device in that, the inside hollow channel 11 that is provided with of four shaft air vehicle 1, four shaft air vehicle front end be provided with the air intake of hollow channel intercommunication, the rear end be provided with the air outlet of hollow channel intercommunication, like this, four shaft air vehicle when flying, outside air by the air intake get into hollow channel and follow the air outlet blows out.
The ultrasonic sensors are opposite to each other in pairs and are arranged on the inner wall of the hollow channel 11.
A detection ring 12 is arranged in the middle of the hollow channel, and the air blows through the detection ring.
Therefore, when the quadcopter flies, the hollow channel can reduce the wind resistance borne by the quadcopter, thereby reducing the energy consumption; and the blown air can be detected, and the data such as air quality in the four-axis aircraft flight area can be confirmed.
And a humidity detection module is arranged on the detection ring and is used for detecting the humidity in the hollow channel.
And the detection ring is also provided with an air detection module for detecting the air quality in the hollow channel.
The humidity detection module/the air detection module is connected with the wireless module, and detected data are transmitted through the wireless module.
Example 5
As mentioned above, the data acquisition device of this embodiment is different from it in that the body 13 of the quadcopter is a cylinder, and four cantilevers 14 are evenly distributed on both sides of the body, and the cantilevers are perpendicular to the axis of the cylinder, and one end is fixed on the body, and the rotor 15 is fixed to the other end.
The axis of the cylinder passes through the center of gravity of the cylinder.
The two cantilevers on the same side are arranged in parallel, and the four cantilevers and the axis of the cylinder are in the same plane.
The connecting lines between two rotors with different opposite angles are perpendicular to each other, and the intersection point is on the axis of the cylinder.
The intersection point coincides with the center of gravity of the cylinder.
Be provided with annular orbit on the four shaft air vehicle, annular orbit sets up the middle part of cylinder, and perpendicular with the axis of cylinder.
In this way, the three-dimensional scanner has minimal effect on the center of gravity of the body when rotated.
Example 6
As mentioned above, the difference between the present embodiment and the data acquisition device is that the circular track 3 is fixed at the middle position of the machine body, and includes: outer slot wall 31, inner slot wall 32, first outer teeth 33; wherein, the outer groove wall and the inner groove wall form an annular groove around the machine body; the annular grooves are two, notches of the two annular grooves are opposite to each other, and the two annular grooves are distributed on two sides of the first outer teeth.
The three-dimensional scanner is provided with a second external tooth 21, the second external tooth 21 is fixed with the three-dimensional scanner 2 through a middle shaft, and the second external tooth is rotatably connected with the middle shaft.
Two ends of the middle shaft penetrate out of the three-dimensional scanner and are respectively clamped in the two annular grooves; in this way, the three-dimensional scanner can be driven to move along the annular groove.
The first outer teeth mesh with the second outer teeth.
Therefore, the three-dimensional scanner can be driven to move along the annular groove by rotating the second outer teeth, so that the three-dimensional scanner rotates around the machine body.
Example 7
As mentioned above, the data acquisition device of the present embodiment is different from the data acquisition device of the present embodiment in that:
the flight stability of the quadcopter is very important, and under the existing technical conditions, although the flight technology of the quadcopter is relatively complete, the situation that the flight attitude is unstable due to improper operation or system signals and the like still happens, and once the flight attitude is unstable, a machine is broken or even a bomb happens (the bomb is a model term, generally, the flight model is abnormally fallen due to improper operation or machine faults and other factors, but the falling model is not damaged and is called a crash. And once a fryer occurs, great data or economic loss is brought.
In the invention, the three-dimensional scanner has a certain weight, the gravity center of the quadcopter is easy to change in the moving process, so that the flight attitude is influenced, and the condition of falling or frying can be caused once the quadcopter cannot restore the flight attitude in time by adjusting the rotating speed; particularly, when the three-dimensional scanner moves from the upper part/lower part of the quadcopter to the lower part/upper part of the quadcopter, the action amplitude is large, the gravity center is changed violently, the posture recovery difficulty is high, and the machine is easy to break or explode.
In this embodiment, a piezoelectric ceramic plate 16 is attached to the cantilever, an analysis module (not shown in the figure) is connected to the piezoelectric ceramic plate, and the potential change at two ends of the piezoelectric ceramic plate is measured at a fixed frequency and converted into a pressure value; and the central processing unit (not shown in the figure) is connected with the analysis module, receives the pressure value and adjusts the rotor wing output of the four-axis aircraft.
The piezoelectric ceramic plate is a ceramic plate with a piezoelectric effect, wherein the piezoelectric effect refers to: when some dielectrics are deformed by an external force in a certain direction, polarization occurs in the dielectrics, and opposite charges of positive and negative polarities occur on two opposite surfaces of the dielectrics. When the external force is removed, it returns to an uncharged state, and this phenomenon is called the positive piezoelectric effect. When the direction of the force changes, the polarity of the charge changes. The piezoelectric body is electrically polarized under the action of external mechanical force, and binding charges with opposite signs appear in the surfaces of two ends of the piezoelectric body, and the charge density of the binding charges is in direct proportion to the external mechanical force.
Like this, can real-time detection the last atress condition of four shaft air vehicle, the last central processing unit of four shaft air vehicle can be according to this atress condition data, adjusts four shaft air vehicle's rotor rotational speed to reach the purpose of quick response.
In general, in order to quickly respond to a change in the flight attitude of a quadcopter, the rotation speed of each rotor wing is adjusted by a central processing unit after the change in the attitude is detected by a built-in gyroscope or the like, so that the attitude is recovered. However, in the adjusting method, the adjustment is performed after the flight attitude is influenced, and the problems of time delay and the like can cause the four-axis aircraft to shake back and forth, so that the success rate of recovering the attitude is reduced; in this embodiment, through real-time detection, the atress condition of four shaft air vehicle can directly be confirmed to in time adjustment, quick response.
Example 8
As described above, the difference between the embodiment and the data acquisition device is that the data acquisition device further includes a calculation module, which is connected to the analysis module, and receives the pressure value and calculates the predicted pressure value at the next time according to the change of the pressure value. Like this, can predict in advance the last atress condition of four shaft air vehicle, the last central processing unit of four shaft air vehicle can be according to the atress condition data of this prediction, in time adjusts four shaft air vehicle's rotor rotational speed to further improve the speed of reaction, realize the atress of rotor and the change balance of exerting oneself, thereby can reduce the unstability of eliminating flight attitude greatly even.
Wherein, the calculation formula of the predicted pressure value in the calculation module is as follows:
Figure BDA0001375647330000111
in the formula, xkDetermined by the following equation:
Figure BDA0001375647330000112
Figure BDA0001375647330000113
Figure BDA0001375647330000114
in the above formula, i is the serial number of the cantilever, j is the serial number of the pressure value, k is the serial number of the latest measured pressure value, T is the threshold value, xk+1To predict the pressure value, xjThe combined pressure value x of the two cantilevers at the same sidekIs the latest combined pressure value, xijFor the jth pressure value, Δ x, to which the ith boom is subjectedijIs a pressure value xijDeviation from the trend, MijIs a pressure value xijA threshold coefficient based on the deviation.
Wherein, { Δ xijIs Δ xijThe fractional part of (a).
The specific idea is as follows: firstly, calculating the deviation between the pressure value and the variation trend through the previous pressure value and the next pressure value of the pressure values, and introducing a threshold value as a judgment standard for judging whether the deviation is overlarge (the threshold value is a constant and can be determined according to the actual condition); then splitting the integer part and the decimal part of the deviation, and obtaining an integer value closest to the deviation as a threshold coefficient of a corresponding pressure value through rounding-down and summation calculation; summing the products of the threshold coefficients and the corresponding pressure values and dividing the sum by the sum of the corresponding threshold coefficients to obtain a combined pressure value; and finally, obtaining a predicted pressure value through the closest combined pressure value and the variation trend thereof.
The beneficial effects are that: calculating possible variation trend of the pressure value through a previous pressure value and a next pressure value of the pressure value, and calculating the deviation of the pressure value and the variation trend through the introduction of a threshold value, so that sudden change of the pressure value caused by errors or signal transmission and other problems can be eliminated through the deviation, wherein the more deviated the variation trend, the smaller the deviation value is; the integer value closest to the deviation is obtained by splitting and calculating the integer part and the decimal part of the deviation, data does not need to be screened, calculation is direct, calculation is convenient and fast, and time is saved; through the calculation, if the pressure value is suddenly changed, the threshold coefficient is 0, and if the pressure value is not suddenly changed or is slightly suddenly changed, the threshold coefficient is 1; the same-time pressure values on the same side are combined to obtain a combined pressure value, so that the measurement error caused by the incomplete difference of the pressure value of the cantilever on the same side due to the specifications of the cantilever or the materials of the ceramic plates and the like is reduced; the predicted pressure value is obtained according to the variation trend of the closest combined pressure value, so that the accuracy of the predicted pressure value is improved; the prediction pressure value can be directly calculated through a formula, so that the prediction efficiency is improved, and the prediction time is shortened; the formula is simple, and the occupation of system resources is reduced.
Example 9
The daytime care facility for the old people is a facility for providing daytime services such as dietary supply, personal care, health care and rehabilitation, entertainment, transportation and the like for the elderly who are mainly the semi-disabled and elderly who cannot take care of the daily lives completely and need certain care in daily life.
At present, the building quality of the old is evaluated by a subjective evaluation method mostly, the evaluation result is different from person to person, and the evaluation method is quantized by an AHP (analytic hierarchy process), and has the advantages of systematicness, simplicity, practicability and less required quantitative data information;
but still have many disadvantages such as: no new solution can be provided for the decision; the quantitative data is less, the qualitative components are more, and the convincing is difficult; when the indexes are excessive, the data statistics is large, and the weight is difficult to determine; the exact solution of the eigenvalues and eigenvectors is complex, etc.
The method for quantitatively evaluating the adaptability of the daily care facility for the old can solve the problems.
The evaluation method is developed by the research of day care facility projects of the old people at home and abroad, is used for evaluating the day care facility of the old people, and can also be used as a design guide to evaluate a design scheme.
The evaluation method is a binary matrix (shown in figure 4), which transversely comprises a group of space environment elements in a daytime care facility building of the old; longitudinal direction is an element related to the elderly's needs.
Venue space data field: living room, public living room, rehabilitation and medical room, management service room, traffic space, and construction equipment
Elderly need data field: accessibility, physical support, sensory support, health and safety, security, work support
The evaluation index of the evaluation method is obtained by collecting a large amount of cross section data, and the evaluation index is filled into a binary matrix.
When the operation is evaluated, the answer is "yes", "no", "not in use (for those buildings that are present but cannot be used in fact)" "unavailable & not applicable". In an ideal building, the answer to each statement is "yes". The building is evaluated by the sum of the range scores and the results are represented in a histogram comparing the sum of the scores of the different categories with the theoretical highest score when all the answers are obtained. The scores were all 1 point.
Finally, the evaluation element data field weight is given, so that an evaluation tool which can carry out quantitative evaluation and is simple and convenient to operate is formed. The evaluation index is used as a design guide to guide the design.
Example 10
According to the method for quantitatively evaluating the environmental suitability of the daily care facility of the old people, when a large amount of cross section data are collected, a great amount of objective data such as building details, spatial layout, physical support, decoration and the like need to be analyzed or collected according to specific data of the care facility; the data acquisition is more complicated and has stronger timeliness, the data acquisition device can be used for acquiring early data, and when some real-time data needs to be acquired, the data acquisition device can be reused for acquiring the real-time data in a required place.
Generally, during data acquisition, the data acquisition device is remotely controlled in real time by using a remote controller and the like, so that some data acquired by the data acquisition device can be better classified, and the data can be acquired more efficiently.
In addition, when data acquisition is carried out in places with longer distance or data of buildings and the like with lower precision requirements are acquired, the data acquisition device can be remotely controlled and automatically executed through a data center and a communication network, so that the acquisition speed is high, simplicity and convenience are realized, and manpower and material resources are saved.
During specific data acquisition, according to the specific requirements and precision requirements of each item of data in the quantitative evaluation method for the environmental suitability of the daily care facility of the old people, the acquisition mode of the data acquisition device is reasonably set, so that rapid and accurate acquisition is realized, and the accuracy of the quantitative evaluation method for the environmental suitability of the daily care facility of the old people is further improved.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (5)

1. A data acquisition device for evaluating the adaptability of an aged person care facility in the daytime is characterized by comprising:
the four-axis aircraft moves to a proper position to hover;
the three-dimensional scanner is arranged on the four-axis aircraft and is used for acquiring data when hovering;
the four-axis aircraft is provided with an annular track, and the three-dimensional scanner is mounted on the annular track and moves along the annular track;
the three-dimensional scanner is arranged on the annular track through a rotating assembly;
the four-axis aircraft is characterized in that the body of the four-axis aircraft is a cylinder, four cantilevers are uniformly distributed on two sides of the body, the cantilevers are perpendicular to the axis of the cylinder, one end of each cantilever is fixed on the body, and the other end of each cantilever is fixed with a rotor wing;
the cantilever is attached with a piezoelectric ceramic piece, an analysis module is connected with the piezoelectric ceramic piece, potential changes at two ends of the piezoelectric ceramic piece are measured at fixed frequency and converted into pressure values, a central processing unit is connected with the analysis module and used for receiving the pressure values and adjusting the output of a rotor of the four-axis aircraft, a calculation module is connected with the analysis module and used for receiving the pressure values and calculating the predicted pressure value at the next moment according to the change of the pressure values, and the calculation formula of the predicted pressure value in the calculation module is as follows:
Figure FDF0000009017630000011
in the formula, xkDetermined by the following equation:
Figure FDF0000009017630000012
Figure FDF0000009017630000014
Figure FDF0000009017630000013
in the above formula, i is the serial number of the cantilever, j is the serial number of the pressure value, k is the serial number of the latest measured pressure value, T is the threshold value, xk+1To predict the pressure value, xjThe combined pressure value x of the two cantilevers at the same sidekIs the latest combined pressure value, xijFor the jth pressure value, Δ x, to which the ith boom is subjectedijIs a pressure value xijDeviation from the trend, MijIs a pressure value xijA threshold coefficient based on the deviation.
2. A data acquisition device according to claim 1, wherein the lines between two rotors of different opposite angles are perpendicular to each other and the point of intersection is on the axis of the cylinder.
3. The data acquisition device as claimed in claim 1 or 2, wherein the endless track comprises: the outer groove wall, the inner groove wall and the first outer teeth; the outer groove wall and the inner groove wall form an annular groove which is formed on the machine body in a surrounding mode; the annular grooves are two, notches of the annular grooves are opposite to each other and distributed on two sides of the first outer teeth.
4. The data acquisition device of claim 3 wherein the three-dimensional scanner has a second outer tooth, the first outer tooth meshing with the second outer tooth.
5. The data acquisition device as claimed in claim 4, wherein the second outer teeth are fixed to the three-dimensional scanner through a central shaft, and the second outer teeth are rotatably connected to the central shaft; two ends of the middle shaft penetrate out of the three-dimensional scanner and are respectively clamped into the two annular grooves.
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