CN211784025U - Portable multichannel air micro-differential pressure on-site self-recording device - Google Patents
Portable multichannel air micro-differential pressure on-site self-recording device Download PDFInfo
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Abstract
A portable multi-channel air micro-differential pressure field self-recording device, comprising: the box, set up in the inside many sets of pressure test mouths of box, a plurality of host computer end pressure differential sensor, analog quantity data acquisition main module, the CPU mainboard, data memory, a plurality of analog quantity data acquisition extension module, a plurality of host computer end sensor power source, a plurality of host computer end signal transmission interface, external power source interface, switch, drive power supply, USB data transmission interface, network data interchange interface and display screen, wherein: each set of pressure test port comprises two test ports; the analog quantity data acquisition main module is connected with a plurality of host end micro differential pressure sensors and a CPU main board; the data memory, the USB data transmission interface, the network data exchange interface, the display screen, the driving power supply and the plurality of analog quantity data acquisition expansion modules are all connected with the CPU mainboard; each analog quantity data acquisition extension module is connected with one of the host-end sensor power interfaces and one of the host-end signal transmission interfaces.
Description
Technical Field
The utility model relates to an air minute-pressure difference measures this technical field, particularly, relates to a portable multichannel air minute-pressure difference on-the-spot self-recording device of a plurality of air minute-pressure difference measurement stations of building engineering field test and automatic recording.
Background
At present, the existing air micro-differential pressure field tester is a single-channel tester, only a single measuring point can be recorded, and for the condition of simultaneously testing or comparing a plurality of differential pressure measuring points, a plurality of testing instruments or a plurality of times of measurement are needed, so that the workload is increased for detection, and error judgment is easily caused by errors among the instruments.
SUMMERY OF THE UTILITY MODEL
The utility model provides a portable multichannel air minute-pressure difference scene is from remembering device for at the differential pressure value of the on-the-spot test of construction engineering and a plurality of air minute-pressure difference measurement stations of automatic recording.
In order to achieve the above object, the utility model provides a portable multichannel air minute-pressure difference on-the-spot self-recording device, it includes: the box, set up in the inside many sets of pressure test mouths of box, a plurality of host computer end pressure differential sensor, analog quantity data acquisition main module, the CPU mainboard, data memory, a plurality of analog quantity data acquisition extension module, a plurality of host computer end sensor power source, a plurality of host computer end signal transmission interface, external power source interface, switch, drive power supply, USB data transmission interface, network data interchange interface and display screen, wherein:
each set of pressure test port comprises two test ports, and the two test ports are respectively connected with the positive pressure end and the negative pressure end of one host end micro differential pressure sensor;
the power consumption input ends of the analog quantity data acquisition main module and each analog quantity data acquisition extension module are connected with a driving power supply;
each host end sensor power interface is connected with a driving power supply;
the signal input end of the analog quantity data acquisition main module is connected with a plurality of host end micro differential pressure sensors;
the signal input end of each analog quantity data acquisition extension module is connected with one host end signal transmission interface;
the signal output ends of the analog quantity data acquisition main module and each analog quantity data acquisition extension module are connected with the CPU mainboard;
the data memory, the USB data transmission interface, the network data exchange interface, the display screen, the driving power supply and the plurality of analog quantity data acquisition expansion modules are all connected with the CPU mainboard;
the external power interface, the switch and the driving power supply are connected in sequence.
In one embodiment of the utility model, the portable multi-channel air micro-differential pressure on-site self-recording device further comprises a plurality of sets of extension units, each set of extension unit comprises an extension unit box body, an extension end sensor power interface, an extension end signal transmission interface, a plurality of extension end micro-differential pressure sensors and a plurality of sets of extension end pressure test ports,
in each set of expansion unit, each set of expansion end pressure test port comprises two test ports which are respectively connected with the positive pressure end and the negative pressure end of one expansion end micro-pressure difference sensor, a plurality of expansion end micro-pressure difference sensors are respectively connected with the power supply interface and the signal transmission interface of the expansion end sensor,
each set of expansion unit corresponds to one analog quantity data acquisition expansion module, each expansion end sensor power interface is connected with a corresponding host end sensor power interface, and each expansion end signal transmission interface is connected with a corresponding host end signal transmission interface.
The utility model discloses an in an embodiment, inside a bottom panel and a top panel of having of box, wherein, CPU mainboard, drive power supply, analog quantity data acquisition main module, a plurality of analog quantity data acquisition extension module and a plurality of host computer end micro differential pressure sensor set up in on the bottom panel, many sets of pressure test mouth, a plurality of host computer end sensor power source, a plurality of host computer end signal transmission interface, external power source interface, switch, USB data transmission interface, network data exchange interface and display screen set up in on the top panel.
In an embodiment of the present invention, the portable multichannel air micropressure difference field self-recording device further includes a plurality of gradienters, and the plurality of gradienters are disposed on the surface panel.
In an embodiment of the present invention, the surface of the box body and the surface of the expansion unit box body are both provided with handles.
In an embodiment of the present invention, the expansion unit box has an upper plate and a lower plate inside, the multiple sets of pressure test ports, the expansion end sensor power interface and the expansion end signal transmission interface are disposed on the upper plate, the multiple support plates perpendicular to the lower plate are disposed on the surface of the lower plate, the multiple expansion end micro-pressure difference sensors are disposed on one of the support plates, and the lower plate is further provided with a connection terminal.
The utility model discloses an in the embodiment, survey mouthful and host computer end differential pressure sensor, survey mouthful and expand and hold differential pressure sensor between all through being hollow sealing hose connection.
In an embodiment of the present invention, to host end differential pressure sensor and/or extension end differential pressure sensor:
the current of the output signal is between 4mA and 20mA, or
The voltage of the output signal is between 0V and 10V, and the range is between-2000 Pa and +2000 Pa.
The utility model provides an application that portable multichannel air minute-pressure difference scene is from remembering device can be convenient at the construction engineering scene, can not only test and automatic recording air minute-pressure difference, can conveniently test and take notes the pressure differential value of a plurality of pressure differential measurement stations moreover to but visual display and automatic recording data of gathering have reduced detection achievement greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram showing the connection of the main components of the portable multi-channel air micro-differential pressure field self-recording device provided by the present invention;
fig. 2 is a schematic diagram of the general structure of a portable multi-channel air micro-differential pressure field self-recording device according to an embodiment of the present invention;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a side view of FIG. 2;
FIG. 5 is a top view of the skin of FIG. 2;
FIG. 6 is a bottom plan view of FIG. 2;
fig. 7 is a schematic diagram of an overall structure of an extension unit according to an embodiment of the present invention;
FIG. 8 is a front view of FIG. 7;
FIG. 9 is a side view of FIG. 7;
FIG. 10 is a top view of the skin of FIG. 7;
FIG. 11 is a bottom plan view of FIG. 7;
FIG. 12 is a schematic view of FIG. 2 with the housing attached;
fig. 13 is a schematic view of fig. 7 with the extension unit housing added.
Description of reference numerals: 1-a box body; 2-a display screen; 3-an external power interface; 4-a switch; 5-network data exchange interface; 6-USB data transmission interface; 7-host end sensor power interface; 8-a host end signal transmission interface; 9-pressure test port; 10-a skin panel; 11/12-level gauge; 13-a CPU motherboard; 14-a drive power supply; 15-analog data acquisition main module; 16-analog quantity data acquisition extension module; 17-host end micro differential pressure sensor; 18-a bottom panel; 20-an expansion unit box; 21-an expanded end pressure test port; 22-an extension end signal transmission interface; 23-expansion end sensor power interface; 24-an upper plate; 25/26-level gauge; 27-an expansion end micro-differential pressure sensor; 28-a support plate; 29-a connecting terminal; 30-lower layer plate; 31-handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Fig. 1 is a schematic diagram illustrating connection of main components in a portable multi-channel air differential pressure field self-recording device, fig. 2 is a schematic diagram illustrating an overall structure of the portable multi-channel air differential pressure field self-recording device according to an embodiment of the present invention, fig. 3 is a front view of fig. 2, fig. 4 is a side view of fig. 2, fig. 5 is a top view of fig. 2, fig. 6 is a bottom view of fig. 2, fig. 7 is a schematic diagram illustrating an overall structure of an extension unit according to an embodiment of the present invention, fig. 8 is a front view of fig. 7, fig. 9 is a side view of fig. 7, fig. 10 is a top view of fig. 7, fig. 11 is a bottom view of fig. 7, fig. 12 is a schematic diagram illustrating fig. 2 with a box, and fig. 13 is a schematic diagram illustrating fig. 7 with a box of. As shown in fig. 1-13, the utility model provides a portable multichannel air micropressure difference field self-recording device includes: the box 1, set up in the inside many sets of pressure test mouth 9 of box, a plurality of host computer end pressure differential sensor 17, analog quantity data acquisition main module 15, CPU mainboard 13, data memory, a plurality of analog quantity data acquisition extension module 16, a plurality of host computer end sensor power source 7, a plurality of host computer end signal transmission interface 8, external power source 3, switch 4, drive power supply 14, USB data transmission interface 6, network data exchange interface 5 and display screen 2, wherein:
each set of pressure test port 9 comprises two test ports which are respectively connected with the positive pressure end and the negative pressure end of one host end micro differential pressure sensor 17;
the power consumption input ends of the analog quantity data acquisition main module 15 and each analog quantity data acquisition extension module 16 are connected with the driving power supply 14;
each host end sensor power interface 7 is connected with a driving power supply 14;
the signal input end of the analog quantity data acquisition main module 15 is connected with a plurality of host end micro differential pressure sensors 17;
the signal input end of each analog quantity data acquisition expansion module 16 is connected with one of the host end signal transmission interfaces 8;
the signal output ends of the analog quantity data acquisition main module 15 and each analog quantity data acquisition extension module 16 are connected with the CPU mainboard 13;
the data storage, the USB data transmission interface 6, the network data exchange interface 5, the display screen 2, the driving power supply 14 and the plurality of analog quantity data acquisition expansion modules 16 are all connected with the CPU mainboard 13, the data storage can store acquired data in real time, the display screen 2 can be, for example, a touch type, so that a user can operate the display screen, pressure change curves of one or more channels can be selectively checked through the display screen 2, historical data can be checked through the display screen and the curve graph can be zoomed in the real-time display process of the display screen 2, the USB data transmission interface 6 is used for exporting the data, and real-time communication with a computer can be realized through the network data exchange interface 5;
the external power interface 3, the switch 4 and the driving power supply 14 are connected in sequence;
the micro differential pressure sensor 17 at the host end collects the differential pressure of each differential pressure measuring point to be tested through a measuring port, the collected data is transmitted to the CPU mainboard 13 through the analog quantity data collecting main module 15 to be processed, the processed data is displayed through the display screen 2 and stored in the data memory, and meanwhile, the data can be exported through the USB data transmission interface 6 and the network data exchange interface 5, so that the purpose of simultaneously testing and automatically recording the real-time data of the plurality of differential pressure measuring points is achieved.
The data storage device in this case is only shown in fig. 1, and those skilled in the art can determine the position of the data storage device in the box body according to the convenience of the specific implementation and the space occupied by the data storage device, which will not be described herein.
The portable multi-channel air micro-differential pressure on-site self-recording device in the embodiment further comprises a plurality of sets of expansion units, wherein two sets of expansion units are shown in figure 1, each set of expansion unit comprises an expansion unit box body 20, an expansion end sensor power interface 23, an expansion end signal transmission interface 22, a plurality of expansion end micro-differential pressure sensors 27 and a plurality of expansion end pressure test ports 21,
in each set of expansion unit, each set of expansion end pressure test port 21 comprises two test ports, the two test ports are respectively connected with the positive pressure end and the negative pressure end of one expansion end micro-pressure difference sensor 27, a plurality of expansion end micro-pressure difference sensors 27 are respectively connected with an expansion end sensor power interface 23 and an expansion end signal transmission interface 22,
each set of expansion unit corresponds to one analog quantity data acquisition expansion module 16, each expansion end sensor power interface 23 is connected with a corresponding host end sensor power interface 7, and each expansion end signal transmission interface 22 is connected with a corresponding host end signal transmission interface 8.
When the number of the pressure difference measuring points is large, the number of the measuring points can be increased by using an expansion unit, after the pressure difference data is collected by an expansion end micro pressure difference sensor 27 in the expansion unit, the expansion end micro pressure difference sensor is connected with an analog quantity data collecting and expanding module 16 through a connecting line between an expansion end signal transmission interface 22 and a host end signal transmission interface 8, and the collected data is also processed by a CPU mainboard, displayed on the display screen 2 in real time and stored in a data memory.
As shown in fig. 2-6, the box 1 has a bottom panel 18 and a surface panel 10 inside, wherein the CPU board 13, the driving power supply 14, the analog data acquisition main module 15, the analog data acquisition expansion modules 16, and the host micro differential pressure sensors 17 are disposed on the bottom panel 18, and the sets of pressure test ports 9, the host sensor power interfaces 7, the host signal transmission interfaces 8, the external power interface 3, the switch 4, the USB data transmission interface 6, the network data exchange interface 5, and the display screen 2 are disposed on the surface panel 10.
As shown in fig. 2, 4 and 5, the portable multi-channel air-differential-pressure field self-recording device further comprises a plurality of levels 11/12, wherein a plurality of levels 11/12 are disposed on the skin panel 10.
As shown in fig. 4-6 and 9-13, the surface of the box body 1 and the surface of the expansion unit box body 20 are provided with handles 31 for moving.
As shown in fig. 7, an upper plate 24 and a lower plate 30 are disposed inside the expansion unit box 20, a plurality of sets of pressure test ports 21, an expansion end sensor power interface 23, and an expansion end signal transmission interface 22 are disposed on the upper plate 24, a plurality of support plates 28 perpendicular to the lower plate 30 are disposed on the surface of the lower plate 30, a plurality of expansion end micro-differential pressure sensors 27 are respectively disposed on one of the support plates 28, a connection terminal 29 is further disposed on the lower plate 30, and the connection terminal 29 is used for electrically connecting the expansion end signal transmission interface 22, the expansion end sensor power interface 23 and the expansion end micro-differential pressure sensors 27, so as to avoid the problem that the expansion end micro-differential pressure sensors 27 are not convenient to replace when being damaged due to direct connection welding.
Similarly, the expansion unit housing 20 is also provided with a level 25/26 on the upper deck 24.
The port and host end micro differential pressure sensor 17 and the port and expansion end micro differential pressure sensor 27 are connected by hollow sealing hoses, so as to avoid that other parts in the drawings are covered by the sealing hoses to affect the view effect, the sealing hoses are omitted in each drawing of the present application, and the use of the sealing hoses is well known by those skilled in the art and is not described herein.
The utility model discloses can also set up a plurality of driving transformer according to consumer's total power for the driving transformer mountable of extension unit power supply also can install in the extension unit in the host computer.
The utility model discloses in, to host computer end differential pressure sensor 17 and/or extension end differential pressure sensor 27:
the current of the output signal is between 4mA and 20mA, or
The voltage of the output signal is between 0V and 10V, and the range is between-2000 Pa and +2000 Pa.
The data acquisition time interval of the host end micro differential pressure sensor 17 and/or the expansion end micro differential pressure sensor 27 can be any interval within 0-1 min.
The host end micro differential pressure sensor 17 and/or the extension end micro differential pressure sensor 27 with the voltage range and the current range within the proper range can be selected by the technical personnel in the field according to the actual requirement, and the utility model discloses do not restrict it.
The host signal transmission interface 8 and the expansion signal transmission interface 22 can be, for example, serial communication interfaces or other interfaces supporting RS-232 and RS-485.
The number of the contact cores of the host end sensor power interface 7 and the expansion end sensor power interface 23 is set according to actual requirements, and the interfaces can be aviation plugs, or redundant contacts in the host end signal transmission interface 8 and the expansion end signal transmission interface 22 are used as power supply contacts.
The utility model provides an application that portable multichannel air minute-pressure difference scene is from remembering device can be convenient at the construction engineering scene, can not only test and automatic recording air minute-pressure difference, can conveniently test and take notes the pressure differential value of a plurality of pressure differential measurement stations moreover to but visual display and automatic recording data of gathering have reduced detection achievement greatly.
Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (8)
1. A portable multichannel air micro-differential pressure field self-recording device is characterized by comprising: the box, set up in the inside many sets of pressure test mouths of box, a plurality of host computer end pressure differential sensor, analog quantity data acquisition main module, the CPU mainboard, data memory, a plurality of analog quantity data acquisition extension module, a plurality of host computer end sensor power source, a plurality of host computer end signal transmission interface, external power source interface, switch, drive power supply, USB data transmission interface, network data interchange interface and display screen, wherein:
each set of pressure test port comprises two test ports, and the two test ports are respectively connected with the positive pressure end and the negative pressure end of one host end micro differential pressure sensor;
the power consumption input ends of the analog quantity data acquisition main module and each analog quantity data acquisition extension module are connected with a driving power supply;
each host end sensor power interface is connected with a driving power supply;
the signal input end of the analog quantity data acquisition main module is connected with a plurality of host end micro differential pressure sensors;
the signal input end of each analog quantity data acquisition extension module is connected with one host end signal transmission interface;
the signal output ends of the analog quantity data acquisition main module and each analog quantity data acquisition extension module are connected with the CPU mainboard;
the data memory, the USB data transmission interface, the network data exchange interface, the display screen, the driving power supply and the plurality of analog quantity data acquisition expansion modules are all connected with the CPU mainboard;
the external power interface, the switch and the driving power supply are connected in sequence.
2. The portable multi-channel air micro-differential pressure on-site self-recording device of claim 1, further comprising a plurality of sets of expansion units, each set of expansion unit comprises an expansion unit box, an expansion end sensor power interface, an expansion end signal transmission interface, a plurality of expansion end micro-differential pressure sensors and a plurality of sets of expansion end pressure test ports,
in each set of expansion unit, each set of expansion end pressure test port comprises two test ports which are respectively connected with the positive pressure end and the negative pressure end of one expansion end micro-pressure difference sensor, a plurality of expansion end micro-pressure difference sensors are respectively connected with the power supply interface and the signal transmission interface of the expansion end sensor,
each set of expansion unit corresponds to one analog quantity data acquisition expansion module, each expansion end sensor power interface is connected with a corresponding host end sensor power interface, and each expansion end signal transmission interface is connected with a corresponding host end signal transmission interface.
3. The portable multi-channel air micro-differential pressure on-site self-recording device according to claim 1, wherein the box body is internally provided with a bottom panel and a surface panel, wherein the CPU main board, the driving power supply, the analog quantity data acquisition main module, the analog quantity data acquisition expansion modules and the host-side micro-differential pressure sensors are arranged on the bottom panel, and the pressure test ports, the host-side sensor power interfaces, the host-side signal transmission interfaces, the external power interface, the switch, the USB data transmission interface, the network data exchange interface and the display screen are arranged on the surface panel.
4. The portable multi-channel air micro-differential pressure in-situ self-recording device of claim 3, further comprising a plurality of levels disposed above the skin panel.
5. The portable multi-channel air micro-differential pressure field self-recording device as claimed in claim 2, wherein the surface of the box body and the surface of the box body of the expansion unit are provided with handles.
6. The portable multi-channel air micro-differential pressure on-site self-recording device as claimed in claim 2, wherein the expansion unit box has an upper plate and a lower plate inside, the plurality of sets of pressure test ports, the expansion end sensor power interface and the expansion end signal transmission interface are disposed on the upper plate, a plurality of support plates perpendicular to the lower plate are disposed on the surface of the lower plate, the plurality of expansion end micro-differential pressure sensors are disposed on one of the support plates, and the lower plate is further provided with a connection terminal.
7. The portable multi-channel air micro-differential pressure field self-recording device as claimed in claim 2, wherein the port and the host end micro-differential pressure sensor and the port and the expansion end micro-differential pressure sensor are connected through hollow sealing hoses.
8. The portable multi-channel air micro-differential pressure in-situ self-recording device of claim 1,
for the host end micro differential pressure sensor and/or the expansion end micro differential pressure sensor:
the current of the output signal is between 4mA and 20mA, or
The voltage of the output signal is between 0V and 10V, and the range is between-2000 Pa and +2000 Pa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922449590.7U CN211784025U (en) | 2019-12-30 | 2019-12-30 | Portable multichannel air micro-differential pressure on-site self-recording device |
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| CN201922449590.7U CN211784025U (en) | 2019-12-30 | 2019-12-30 | Portable multichannel air micro-differential pressure on-site self-recording device |
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| CN211784025U true CN211784025U (en) | 2020-10-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280245A (en) * | 2021-12-28 | 2022-04-05 | 中交国通公路工程技术有限公司 | Portable gas detector for tunnel and detection method |
| CN116819213A (en) * | 2023-07-04 | 2023-09-29 | 中国建筑科学研究院有限公司 | Remote test self-adaptive interface data acquisition method, system and application program |
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2019
- 2019-12-30 CN CN201922449590.7U patent/CN211784025U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280245A (en) * | 2021-12-28 | 2022-04-05 | 中交国通公路工程技术有限公司 | Portable gas detector for tunnel and detection method |
| CN114280245B (en) * | 2021-12-28 | 2023-11-21 | 中交国通公路工程技术有限公司 | Portable gas detector for tunnel and detection method |
| CN116819213A (en) * | 2023-07-04 | 2023-09-29 | 中国建筑科学研究院有限公司 | Remote test self-adaptive interface data acquisition method, system and application program |
| CN116819213B (en) * | 2023-07-04 | 2024-04-16 | 中国建筑科学研究院有限公司 | Remote test self-adaptive interface data acquisition method, system and application program |
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