DE202021102585U1 - Testing device and system for maintenance of concrete samples under the same conditions - Google Patents

Abstract

Test device for maintenance of concrete samples under the same conditions, characterized in that the device comprises:
a protective box body for placing the concrete samples on which a microswitch is arranged, the microswitch being used to respond to the opening or closing of the box door of the protective box body;
a detector arranged on the protective box body, comprising a control device connected to the microswitch, which is used to
after binding the project information and receiving a first trigger signal sent by the control device to determine the position information of the concrete sample, the position information including flight altitude information and horizontal position information,
and output alarm information when the flight altitude information and / or the horizontal position information changes.

Description

TECHNICAL AREA

The present application relates to the technical field of monitoring the quality of buildings, in particular a test device and system for maintenance of the concrete samples under the same conditions.

STATE OF THE ART

In the maintenance process of concrete samples under the same conditions, the maintenance start time, the maintenance end time, and the placement position of different concrete samples in the same project are different. With multiple projects it is more difficult to manage and count the maintenance of concrete samples, which leads to the fact that during the maintenance process the concrete sample is lost or the recorded position does not correspond to the actual situation.

CONTENTS OF THE PRESENT USED MODEL

In order to facilitate the management and counting of the concrete samples under the same maintenance conditions and to prevent loss of the concrete samples, the present application provides a testing device and system for maintenance of the concrete samples under the same conditions.

According to a first aspect, the present application provides a testing device for maintenance of the concrete samples under the same conditions, comprising: a protective box body for placing the concrete samples, on which a microswitch is arranged, the microswitch for reacting to the opening or closing of the box door Protective box body is used; a detector arranged on the protective box body, comprising a control device connected to the microswitch, which is used to determine the position information of the concrete sample after binding the project information and receiving a first trigger signal sent by the control device, the position information including flight height information and horizontal position information ; and output alarm information when the flight altitude information and / or the horizontal position information changes.

Preferably, the detector comprises: an air pressure sensor for detecting the air pressure of the placement position of the testing device and a positioning module for detecting the longitude and latitude information of the testing device; wherein the control device is used in particular to determine the flight altitude information in accordance with the air pressure and to determine the horizontal position information in accordance with the longitude and latitude information.

Preferably, the detector is also used to determine and record the cumulative maintenance period of the concrete sample after the project information has been acquired and the first trigger signal has been received, and to output information after the cumulative maintenance period has reached a first maintenance period or the cumulative maintenance period has reached a second maintenance period; wherein the first maintenance period is less than the second maintenance period; and wherein the project information comprises basic information of the project and information of the concrete sample, and wherein the control device is further used to link the basic information of the project and the information of the concrete sample with the equipment code; and wherein the basic information of the project includes the project name, the project time and the person responsible for the project, and wherein the information of the concrete sample includes the construction project name, the building name, the structure type, the structure location, the number of retention groups and the degree of strength.

Preferably, the detector further comprises a temperature and humidity sensor for detecting the ambient temperature and the ambient humidity of the environment in which the concrete sample is placed, and a clock module for determining the duration of the placing of the concrete sample; wherein the controller is further used to determine the cumulative maintenance time in accordance with the ambient temperature and the placement time.

Preferably, the test device further comprises a display device which is used to display the data recorded by the test device and the cumulative maintenance time, the data including the air pressure, the longitude and latitude information, the ambient temperature and the ambient humidity.

A two-dimensional code, which is used to link to the equipment code, is preferably glued to the test device.

According to a second aspect, the present application provides a system with the above testing device for maintenance of the concrete samples under the same conditions, further comprising a mobile terminal and a server; wherein the tester communicates with the server using the narrowband Internet of Things; and wherein the server is used to receive and store the data collected by the test device; and wherein the mobile terminal to do so is used to send the project information to the tester; and wherein the mobile terminal is further used to scan the two-dimensional code on the test device, to establish communication with the test device and to send the project information to the test device.

The mobile terminal is preferably also used to receive the alarm information and / or advisory information output by the test device.

In the test apparatus and system for maintenance of the concrete samples under the same conditions in the embodiment of the present application, a microswitch is arranged on the protective box body, after binding the project information and receiving a first trigger signal outputted by the microswitch, the flying height information and the horizontal position information of the concrete sample detected when the flight altitude information and / or the horizontal position information changes, alarm information is output so that during the maintenance process of the concrete sample under the same conditions, the detector can accurately determine the position information of the concrete sample in order to sort and count the concrete samples by the To facilitate maintenance personnel. If the position of the concrete sample is changed by people, alarm information can be issued to notify the maintenance staff that the position of the concrete sample is changing, which means that the "same conditions" of maintenance are changed under the same conditions and that final maintenance result becomes inaccurate.

Figure list

• 1 FIG. 13 shows a schematic structural view of a test device for maintenance of the concrete samples under the same conditions in an embodiment of the present application.
• 2 Fig. 13 shows a schematic structural view of a detector in the testing device for maintenance of the concrete samples under the same conditions in an embodiment of the present application.
• 3 shows a schematic diagram of the structure of a test system for maintenance of the concrete samples under the same conditions in an embodiment of the present application.

List of reference symbols

100

Testing device

200

server

300

Mobile device

110

Protective box body

111

Basic body of the box

112

Box door

113

Microswitch

120

detector

121

Control unit

122

Air pressure sensor

123

Temperature and humidity sensor

124

Positioning module

125

Communication module

126

Clock module

127

Display module

128

Power button

129

Battery module

DETAILED DESCRIPTION

In connection with figures in the embodiments of the present publication, the technical solution in the embodiments of the present publication is explained in the following clearly and completely, so that the objective, the technical solutions and the advantages of the present publication become clearer.

The strength of concrete has a major impact on the quality of construction. The responsible authorities of the construction industry therefore place strict requirements on the physical quality of the concreting in the ongoing construction project. The national norm "Standard for the acceptance of the construction quality for concrete structures" GB50204-2015 prescribes: during the construction period the samples of the same concrete batch for the columns, beams, walls, floor slabs etc. should be kept under the same maintenance conditions and after reaching the maintenance age a strength test is carried out.

In order to more fully and realistically reflect the physical-technical quality of in-situ concrete structures, the standard stipulates that the concrete samples taken are evenly distributed during the construction period of the project. This "uniformity" includes time, space, component type and concrete strength level, etc. B. the same strength grade of concrete includes several Component types. The strength value of the specimen maintained under the same conditions ultimately becomes the acceptance standard for the strength of the concrete component, so the strength value is very important design data.

However, controlling the age of the sample is relatively complicated. The national standard “Specification for the acceptance of the construction quality of the concrete structure” GB50204-2015 prescribes: “The equivalent maintenance age can assume a corresponding age if the daily average temperature accumulates up to 600 ° C · d day by day, the age at 0 ° C and below is not included; and the equivalent maintenance age should not be less than 14d ”.

During the construction process, someone on the construction site is supposed to record the daily average temperature, which accumulates daily, when it reaches 600 ° C · d, the sample is sent to the laboratory in good time for strength testing. In actual operation, the following problems exist: the placement and management of the samples is not standardized, since a relatively large age is actually required, which is between 14 days and several months, the start time and the position of the samples are different, and the end time is also determined depending on the weather and temperature, so in actual operation there is sometimes a situation that the samples are lost or difficult to find; since the temperature on the construction site is not recorded accurately, it is recorded and accumulated by some operators according to the temperature of the weather forecast, with a large deviation from the actual temperature on the construction site; in relation to cumulative calculations, according to the standard requirements, ages below 0 ° C should not be counted and eliminated, which increases the difficulty of recording; the construction projects are spread all over the country and it is very difficult and impossible to uniformly monitor every link of the maintenance chain under the same conditions using traditional monitoring methods.

In order to facilitate the management and counting of the concrete samples under the same maintenance conditions and to prevent the loss of the concrete samples, an embodiment of the present application provides a test device and system for maintenance of the concrete samples under the same conditions.

1 FIG. 13 shows a schematic structural view of a test device for maintenance of the concrete samples under the same conditions in an embodiment of the present application.

As in 1 shown, includes the test device 100 a protective box body 110 for placing the concrete sample and one on the protective box body 110 arranged detector 120 .

The protective box body 110 is used to store the concrete samples and is placed around the respective pillars, beams, walls, floor slabs, etc., so that the concrete sample of the same batch as pillars, beams, walls, floor slabs, etc., are maintained under the same conditions as the concrete sample.

In some embodiments, the protective box body comprises 110 a basic body of the box 111 and a box door 112 , being the box door 112 on the body of the box 111 can be opened or closed.

The size of the protective box body 110 can be determined in accordance with the number and size of the concrete samples to be placed. If z. B. 3 concrete samples in the protective box body 110 may be the actual size of the protective box body 110 can be determined in accordance with the size of each concrete sample.

In some embodiments it is on the box door 112 a microswitch 113 arranged when closing the box door 112 becomes the microswitch 113 triggered, and the microswitch 113 is with the controller in the detector 120 connected when the microswitch 113 is triggered, the control device can output a first trigger signal.

In the example with one on the body of the box 111 arranged microswitch 113 is the microswitch 113 on a side surface of the base body of the box 111 arranged with its drive rod of the box door 112 facing, and being at one of the with the microswitch 113 provided side surface of the base body of the box 111 corresponding side surface of the box door 112 a pressure disc is arranged when closing the box door 112 the thrust washer can be the actuator stem of the microswitch 113 Press so that the microswitch is switched on, so when the box door is closed 112 the control unit output a first trigger signal.

In some embodiments, the detector 120 used to determine the position information of the concrete sample after binding the project information and receiving a first trigger signal, the position information including flight height information and horizontal position information, and to output alarm information if the flight height information and / or the horizontal position information changes.

That is, during the maintenance process of the concrete sample under the same conditions, the detector can 120 accurately determine the position information (specific horizontal position information and the height information of the floor where the concrete sample is located) of the concrete sample in order to facilitate the sorting and counting of the concrete samples by the maintenance personnel.

If the position of the concrete sample is changed by people, alarm information can of course be issued to notify the maintenance personnel that the position of the concrete sample is changing, which means that the "same conditions" of the maintenance work are changed under the same conditions the final maintenance result becomes inaccurate.

In some embodiments, the detector 120 further used to determine and record the cumulative maintenance time of the concrete sample after binding the project information and receiving the first trigger signal, and to output an indication information after the cumulative maintenance time has reached a first maintenance time or the cumulative maintenance time has reached a second maintenance time; wherein the first maintenance period is less than the second maintenance period.

The second maintenance period can e.g. B. be the maintenance period specified in GB50204-2015, namely when the concrete sample reaches the maintenance period specified in GB50204-2015, the detector gives 120 a notice information to notify the maintenance personnel of this.

The first maintenance period is smaller than the second maintenance period, and the specific value can be set by the maintenance personnel as required. For example, the first maintenance period is 3 days shorter than the second maintenance period, namely if the concrete sample reaches the maintenance period specified in GB50204-2015 in 3 days, information is issued to the maintenance staff to inform the maintenance staff that the concrete sample will soon be under maintenance will complete the same terms.

In the present embodiment, the project information includes basic information of the project and information of the concrete sample. The basic information of the project can e.g. This includes, for example, the project name, the project time and the person responsible for the project and other information. The information of the concrete sample can e.g. B. the construction project name, the building name, the structure type, the structure location, the number of retention groups, the degree of strength and the like.

In some exemplary embodiments, the test device is provided with a unique device number when it leaves the factory; the device number should be linked to the project information before maintenance is carried out under the same conditions for the concrete sample. The binding can be implemented both by manual input by the maintenance staff and by the mobile terminal; the binding by the mobile terminal is explained in more detail below.

In some embodiments, the first trigger signal can be a signal generated by the microswitch 113 is issued when the box door 112 after placing the concrete sample in the protective box body 110 is closed. In some other exemplary embodiments, a start button is arranged on the test device, the first trigger signal also being a start signal that is generated when the start button is pressed. Of course, the first trigger signal can continue to be a signal generated by the microswitch 113 is issued when the box door 112 after placing the concrete sample in the protective box body 110 is closed, and a start signal which is generated when the start button is pressed.

In connection with figures, the working process of the detector in the exemplary embodiment of the present application is explained in more detail below.

2 Fig. 13 shows a schematic structural view of a detector in the testing device for maintenance of the concrete samples under the same conditions in an embodiment of the present application.

As in 2 shown includes the detector 120 a case that is a hollow structure and attached to the protective box body 110 is arranged, with a control device in the interior of the housing 121 and an air pressure sensor 122 , a positioning module 124 , a communication module 125 , a clock module 126 , a display module 127 , an operation button 128 and a battery module 129 that with the control unit 121 are connected, are arranged, the temperature and humidity sensor 123 with the control unit 121 is connected and arranged on the outside of the housing.

In some exemplary embodiments, the controller is 121 with a circuit in which the microswitch is located 113 located, connected and can receive a signal through the microswitch 113 when opening or closing the box door 112 is issued.

In some exemplary embodiments, a detection hole is provided on the housing, one Air pressure sensor detection probe 122 is located at the detection hole to check the air pressure of the placement position of the testing device 100 to capture and this to the control unit 121 to transmit, and where the control unit 121 is used to determine the flight altitude of the placement position of the test device in accordance with the air pressure 100 to determine the floor on which the test device 100 is placed.

The positioning module 124 is used to get the latitude and longitude information of the placement position of the tester 100 to record and this longitude and latitude information to the control unit 121 to transmit, the control unit 121 the horizontal position information of the placement position of the inspection device is used in accordance with the longitude and latitude information 100 ascertain.

For example, through the positioning module 124 the number of the building in which the test device carrying the concrete sample 100 and the specific floor identified to facilitate counting and maintenance by maintenance personnel.

In some embodiments, the clock module 126 used to generate a clock signal, the control unit 121 can determine the duration in accordance with the clock signal. For example, the control unit 121 through the clock module 126 determine the placement time of the concrete sample. In some other embodiments, the clock module 126 further used to generate a timing interrupt signal to the controller 121 wake up so that the control unit detects the signals such as temperature and humidity and records the sampling time.

As the temperature and humidity sensor 123 the temperature and humidity of the environment where the tester is placed 100 should detect, the temperature and humidity sensor should 123 be arranged outside the housing. Around the temperature and humidity sensor 123 to protect can on the outside of the temperature and humidity sensor 123 a protective cover of the sensor can be arranged. The temperature and humidity sensor 123 is used to record the ambient temperature and the ambient humidity of the placement environment of the concrete sample and the temperature and humidity information to the control unit 121 transferred to.

The control unit 121 is used to determine the cumulative maintenance time of the concrete sample in accordance with the ambient temperature and the placing time, and can output advisory information in accordance with the relationship of the magnitudes of the cumulative maintenance time, the first maintenance time and the second maintenance time. The cumulative maintenance time is that the daily average temperature is recorded and accumulated daily.

In some embodiments, the power button 128 z. B. comprise a start button and a stop button, when the start button is pressed, a start signal is generated and sent to the control unit 121 transmitted so that the control unit 121 start work; when the stop button is pressed, a stop signal is generated and sent to the control unit 121 transmitted so that the control unit 121 stops working.

To prevent the control unit from being accidentally started or stopped by accidentally touching the start button or the stop button, the start button or the stop button can be configured in such a way that its start signal or a stop signal is sent to the control unit when 6 is pressed 121 is transmitted.

In some embodiments, the battery module 129 z. B. comprise a rechargeable lithium battery and a capacity measuring module. The rechargeable lithium battery supplies the tester 100 with electricity, the capacity measuring module being used to measure the remaining capacity information of the rechargeable lithium battery and this information to the control unit 121 transferred to.

In some exemplary embodiments, the display device comprises a display module 127 , the Z. B. be a liquid crystal screen, the liquid crystal screen with the control unit 121 connected to that through the control unit 121 received various information (such as the data acquired by the test device and the cumulative maintenance time determined by the detector), so that the maintenance personnel can clearly observe the maintenance information of the concrete sample.

In some embodiments, the communication module 125 by the control unit 121 Send the received different information to the mobile terminal in order to facilitate remote maintenance of the concrete sample by the maintenance staff holding the mobile terminal in their hand.

In some exemplary embodiments, a two-dimensional code is adhered to the test device which is used to link to the equipment code of the test device.

3 shows a schematic diagram of the structure of a test system for maintenance of the concrete samples under the same conditions in an embodiment of the present application. As in 3 As shown, the system includes a tester 100 , a server 200 and a mobile device 300 .

The test device is standing by 100 , the server 200 and the mobile device 300 in communication link with each other, the test device 100 communicates with the server through the narrowband Internet of Things, e.g. B. by several protocols (CoAP, TCP / UDP, MQTT, OMA-LWM2M, oneNET and the like).

The server 200 can e.g. B. be a blade server, a rack server, etc., and the server 200 can also be a server cluster provided in the cloud, which is not restricted here.

The mobile device 300 can e.g. B. be a portable device such as a mobile phone, a tablet computer or a bracelet, which is not particularly limited in the embodiment of the present application. The operating system in the mobile device 300 can be an Android operating system or an iOS operating system, which is not limited here.

In some embodiments, the tester is 100 used to acquire the temperature and humidity information of the placement environment of the concrete sample, the flight height information and the horizontal position information of the placement position of the concrete sample, and record the cumulative maintenance time and other information of the concrete sample, and this information to the server 200 to be transferred to save, so that counting and management of the different concrete samples in multiple projects is facilitated. At the same time the test device 100 continues to be used to send the above information to the mobile device 300 to send to the maintenance staff who use the mobile terminal 300 holds in hand to point out.

In some exemplary embodiments, the test device 100 a two-dimensional code to be glued to the mobile terminal 300 By scanning the two-dimensional code, the device number of the test device represented by the two-dimensional code can be obtained 100 capture, being on the mobile terminal 300 the device number and the project information are bound, and the bound information is bound to the test device 100 and the server 200 be sent.

In some other embodiments, the tester is 100 used to acquire the temperature and humidity information of the placement environment of the concrete sample, the flight height information and the horizontal position information of the placement position of the concrete sample, and to record the and other information of the and this information to the server 200 to be transmitted for processing, the server 200 records the cumulative maintenance time of the concrete sample.

The above content only represents preferred embodiments and technical principles used in the present application.

Claims (8)

A testing apparatus for maintaining the concrete samples under the same conditions, characterized in that the apparatus comprises: a protective box body for placing the concrete samples on which a microswitch is arranged, the microswitch being used to respond to the opening or closing of the box door of the protective box body; a detector arranged on the protective box body and comprising a control device connected to the microswitch, which is used to determine the position information of the concrete sample after binding the project information and receiving a first trigger signal sent by the control device, the position information including flight height information and horizontal position information and to output alarm information when the flight altitude information and / or the horizontal position information changes. Device after Claim 1 characterized in that the detector comprises: an air pressure sensor for detecting the air pressure of the placement position of the testing device and a positioning module for detecting the longitude and latitude information of the testing device; wherein the control device is used in particular to determine the flight altitude information in accordance with the air pressure and to determine the horizontal position information in accordance with the longitude and latitude information. Device after Claim 2 characterized in that the detector is further used to determine and record the cumulative maintenance time of the concrete sample after the project information has been acquired and the first trigger signal has been received; and output notification information after the cumulative maintenance period reached a first maintenance period or the cumulative maintenance period reached a second maintenance period; wherein the first maintenance period is less than the second maintenance period; and wherein the project information comprises basic information of the project and information of the concrete sample, and wherein the control device is further used to link the basic information of the project and the information of the concrete sample with the equipment code; and wherein the basic information of the project includes the project name, the project time and the person responsible for the project, and wherein the information of the concrete sample includes the construction project name, the building name, the structure type, the structure location, the number of retention groups and the degree of strength. Device after Claim 3 characterized in that the detector further comprises: a temperature and humidity sensor for detecting the ambient temperature and humidity of the placement environment of the concrete sample and a clock module for determining the placement time of the concrete sample; wherein the controller is further used to determine the cumulative maintenance time in accordance with the ambient temperature and the placement time. Device after Claim 4 , characterized in that it further comprises a display device used to display the data collected by the tester and the cumulative maintenance time, the data including the barometric pressure, the longitude and latitude information, the ambient temperature and the ambient humidity. Device after Claim 3 , characterized in that a two-dimensional code is glued to the test device, which is used to link to the equipment code. System with a test device for maintenance of the concrete samples under the same conditions according to one of the Claims 1 to 6th , characterized in that it comprises a mobile terminal and a server; wherein the tester communicates with the server using the narrowband Internet of Things; and wherein the server is used to receive and store the data collected by the test device; and wherein the mobile terminal is used to send the project information to the test device; and wherein the mobile terminal is further used to scan the two-dimensional code on the test device, to establish communication with the test device and to send the project information to the test device. System according to Claim 7 , characterized in that the mobile terminal is also used to receive the alarm information and / or advisory information output by the test device.

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