CN209894250U - Wireless flow acquisition system - Google Patents
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- CN209894250U CN209894250U CN201920283899.0U CN201920283899U CN209894250U CN 209894250 U CN209894250 U CN 209894250U CN 201920283899 U CN201920283899 U CN 201920283899U CN 209894250 U CN209894250 U CN 209894250U
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Abstract
The utility model discloses a wireless flow acquisition system, belonging to the field of wireless acquisition equipment, comprising; the wireless flowmeter, the wireless receiving terminal and the computer; the wireless flowmeter is connected with the wireless receiving terminal through a wireless network, and the wireless receiving terminal is connected with the computer through a USB cable; the wireless flowmeter is arranged at a nozzle of the thruster and used for detecting the air jet flow of the thruster and converting detected gas circulation data into electric signals to be sent to the wireless receiving terminal, the wireless receiving terminal transmits the electric signals to the computer through a USB cable, and polarity testing software on the computer realizes real-time display of the air jet state of the thruster. The scheme simplifies the design, has few modules and simple circuit design, reduces the types and the number of raw materials, parts, components and parts and assemblies, adopts a double-point double-line mode for key signals, improves the overall use reliability, and has the advantages of low cost, low power consumption, portability, high precision, intellectualization and the like.
Description
Technical Field
The utility model relates to a wireless collection equipment technical field, in particular to wireless flow collection system.
Background
At present, the traditional flow test of the thruster depends on the manual induction of the existence of the air injection action of the thruster by an operator, and the air injection flow change curve cannot be collected. Particularly, when a plurality of thrusters are tested simultaneously, a plurality of operators are required to simultaneously sense whether the thrusters have air injection actions by hands beside the satellite, so that the waste of manpower, material resources and time is caused, the manual sensing is easy to misjudge due to external environment and other factors, the accuracy of the test cannot be ensured, visual test results cannot be left, and the hidden danger is brought to the satellite test.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a wireless flow collection system to solve one of the technical problem that exists among the prior art at least. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of the embodiments of the present invention, there is provided a wireless traffic collection system;
in some optional embodiments, the wireless traffic collection system comprises; the wireless flowmeter, the wireless receiving terminal and the computer;
the wireless flowmeter is connected with the wireless receiving terminal through a wireless network, and the wireless receiving terminal is connected with the computer through a USB cable;
the wireless flow meter is arranged at a nozzle of the thruster and used for detecting the flow rate of the jet of the thruster, converting detected gas flow data into an electric signal and sending the electric signal to the wireless receiving terminal, the wireless receiving terminal transmits the electric signal to the computer through a USB cable, and polarity testing software on the computer realizes real-time display of the jet state of the thruster.
In some optional embodiments, the wireless flow meter further includes a housing, a flow sensor, a wireless transmission circuit module, and a storage battery, where the flow sensor and the storage battery are both disposed in the housing, and the flow sensor converts the received gas ejected from the thruster into an electrical signal and transmits the electrical signal to the Zigbee wireless module of the wireless transmission circuit module, and then transmits the electrical signal to the wireless receiving terminal through the Zigbee wireless module.
In some optional embodiments, the wireless transmitting circuit further includes a charging circuit module, a downloading circuit module and a power circuit module, the power circuit module is connected to the charging circuit module to supply power to the battery and the Zigbee wireless module, and the downloading circuit module is connected to the Zigbee wireless module.
In some optional embodiments, further, the battery is a polymer lithium battery.
In some optional embodiments, further, the housing is integrally formed by injection molding.
In some optional embodiments, further, the flow sensor is mounted at the nozzle of the thruster through a fixing device.
In some alternative embodiments, further, the fixing device is a clip, and the clip is made of a plastic material.
In some optional embodiments, further, each of the wireless receiving terminals is capable of receiving twenty of the wireless flow meters' electrical signals, and each of the wireless flow meters is provided with a unique number.
In some optional embodiments, further, the housing of the wireless receiving terminal is formed by molding an aluminum alloy material.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the system has the advantages of being low in cost, low in power consumption, portable, high in precision, intelligent and the like, does not need to use a large amount of human resources for testing and overhauling, has obvious effects on improving the automatic management level and saving manpower and funds, has high engineering application value and market popularization value, and has very wide application prospect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a block diagram of a wireless traffic collection system according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a wireless transmit circuit design of a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
FIG. 3 is a graph illustrating a flow versus output voltage value for a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating download circuit modules of a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating the principle of a charging circuit module of a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
FIG. 6 is another schematic diagram illustrating the principle of a charging circuit module of a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
FIG. 7 is a schematic diagram illustrating an interface circuit of a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
FIG. 8 is another schematic diagram illustrating an interface circuit of a wireless flow meter of a wireless flow collection system in accordance with an exemplary embodiment;
fig. 9 is a schematic circuit diagram illustrating a Zigbee wireless module of a wireless traffic collection system according to an exemplary embodiment;
fig. 10 is another schematic circuit diagram illustrating a Zigbee radio module of a wireless traffic collection system according to an exemplary embodiment;
fig. 11 is a schematic diagram illustrating a circuit design of a wireless receiving terminal of a wireless traffic collection system according to an exemplary embodiment.
Reference numerals:
1-a wireless flow meter; 101-a flow sensor; 102 a Zigbee wireless module; 103-a storage battery; 104 a power circuit module; 2-a wireless receiving terminal; 3-a computer; 4-pusher.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "utility model" merely for convenience and without intending to voluntarily limit the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
According to an aspect of the embodiments of the present invention, there is provided a wireless traffic collection system;
as shown in fig. 1-11, in some alternative embodiments, the wireless traffic collection system includes; the system comprises a wireless flowmeter 1, a wireless receiving terminal 2 and a computer 3;
the wireless flowmeter 1 is connected with the wireless receiving terminal 2 through a wireless network, and the wireless receiving terminal 2 is connected with the computer 3 through a USB cable;
the wireless flowmeter 1 is arranged at a nozzle of the thruster 4 and used for detecting the jet flow of the thruster 4 and converting detected gas flow data into an electric signal to be sent to the wireless receiving terminal 2, the wireless receiving terminal 2 transmits the electric signal to the computer 3 through a USB cable, and polarity testing software on the computer 3 realizes real-time display of the jet state of the thruster 4.
In the embodiment, a mature testing technology is adopted, the design is simplified, the number of modules is small in the design process of the system under the condition of meeting the performance, the circuit design is simple, the types and the number of raw materials, parts, components and parts and assemblies are reduced, the system has the advantages of low cost, low power consumption, portability, high precision, intellectualization and the like, and a large amount of human resources are not required to be used for testing and overhauling.
In some optional embodiments, optionally, as shown in fig. 2 and 4 to 8, the wireless flowmeter 1 includes a housing, a flow sensor 101, a wireless transmitting circuit module, and a storage battery 103, where the flow sensor 101 and the storage battery 103 are both disposed in the housing, and the flow sensor 101 converts received gas ejected from the thruster 4 into an electric signal and transmits the electric signal to the Zigbee wireless module 102 of the wireless transmitting circuit module, and then transmits the electric signal to the wireless receiving terminal 2 through the Zigbee wireless module 102.
In this embodiment, the wireless flowmeter 1 is installed at a nozzle of the thruster 4, and is configured to monitor a jet state and a jet flow of the thruster 4 in real time, convert a flow value into a digital signal, and transmit the digital signal to the wireless receiving terminal 2 through the Zigbee wireless module 102.
On the basis of the above embodiment, further, the housing is integrally formed by injection molding.
In addition, the casing of the wireless flowmeter 1 is designed mainly from the following points:
1) materials: the plastic material is adopted, so that the weight is greatly reduced while the firmness of the equipment is ensured;
2) size: the design of small size, 45mm is multiplied by 35mm is multiplied by 25 mm;
3) color: the beauty of the shell is improved by adopting red spray paint and white silk-screen printing treatment.
After the design, the weight of the shell is less than 10g, and the overall weight is less than 40g, so that the requirement is met.
In some optional embodiments, as shown in fig. 2, the wireless transmitting circuit further includes a charging circuit module, a downloading circuit module and a power circuit module 104, the power circuit module 104 is connected to the charging circuit module to supply power to the battery 103 and the Zigbee wireless module 102, and the downloading circuit module is connected to the Zigbee wireless module 102.
TABLE 1 functional composition of a wireless flowmeter 1
In some optional embodiments, optionally, the battery 103 is a polymer lithium battery.
In this embodiment, the storage battery 103 is a 3.7V polymer lithium battery model 602530, and its main performance indexes are as follows:
nominal voltage: 3.7V;
full-charge voltage: 4.2V;
discharge voltage: a minimum of 2.75V;
capacity: 600 mAh;
the belt has a protection function: overcharge protection, overdischarge protection, short circuit protection and overcurrent protection;
working temperature: -20 ℃ to 60 ℃;
size: 35mm by 22mm by 5 mm;
weight: 6 g.
Through test verification, the selected lithium battery can support the wireless flowmeter 1 to continuously work for more than 5 hours. As shown in the table below, a list of functional parameters of the wireless flow meter 1 is shown.
Table 2 wireless flowmeter 1 functional parameter list
In some optional embodiments, further, the flow sensor 101 is installed at the nozzle of the thruster 4 by a fixing device.
In this embodiment, the model of the flow sensor 101 is AWM3300, and its main performance indexes are as follows: as shown in figure 3 of the drawings,
supply voltage: 10V;
power consumption: 50 mW;
response time: 3 ms;
working temperature: -25 ℃ to 85 ℃;
measurement range: 0-1000 Sccm;
and (3) measuring precision: 1 percent;
maximum withstand voltage: 2.5 MPa;
weight: 10 g.
The function of each part of the circuit is as follows:
the charging and downloading circuits, as shown in figures 4 to 6,
a Micro USB interface is adopted to realize the function of charging the lithium battery; meanwhile, a USB-to-serial port device FT232 is adopted to realize program downloading of the Zigbee singlechip microcomputer.
The power supply circuit, as shown in figures 4 to 6,
a lithium battery charging management device BQ24070 of TI company is adopted to realize the charging of the lithium battery and the power supply of the core single chip microcomputer;
the TPS61041 pressure boosting device of TI company is adopted to realize the pressure boosting of 3.3V to 10V for the operation of the flow sensor 101.
The Zigbee core circuit, as shown in fig. 9 to 10,
the Zigbee core circuit adopts a mature wireless Zigbee module with the model number of E18-MS 1-PCB.
The main performance indexes are as follows:
a radio frequency chip: TI, CC 2530;
working frequency band: 2405-2480 MHz, 2.4GHz IEEE802.15.4 protocol;
module size: 23mm × 14mm × 2 mm;
supply voltage: 3.0-3.6V;
emission power: maximum 4 dBm;
emission current: 28 mA;
static current: 1.2 uA;
effective distance: 200m in the open place;
working temperature: -40 ℃ to 85 ℃;
weight: 1.2 g.
In some alternative embodiments, further, the fixing device is a clip, and the clip is made of a plastic material.
In this embodiment, the fixing device is made of a non-metal material to avoid abrasion of the surface coating of the thruster 4 when the fixing device is fixed with the thruster 4, and the weight of the fixing device is less than 2 g.
In some optional embodiments, further, each of the wireless receiving terminals is capable of receiving electrical signals of twenty wireless flow meters 1, and each of the wireless flow meters 1 is provided with a unique number.
In this embodiment, the wireless receiving terminals 2 use the USB interface to complete power supply and data communication, and each wireless receiving terminal 2 can receive signals of 20 wireless flowmeters 1, and each wireless flowmeter 1 has a unique number.
As shown in fig. 11, the wireless reception terminal 2 mainly includes a housing, a wireless reception circuit, an antenna, and a USB cable 4 portion.
In some optional embodiments, further, the housing of the wireless receiving terminal is formed by molding an aluminum alloy material.
The wireless receiving terminal 2 is connected to the computer 3 via a USB cable, and the weight of the device is not strictly required, but the overall portability is considered.
In the present scheme, the housing of the wireless receiving terminal 2 is designed from the following points:
1) materials: the aluminum alloy material is selected, so that the strength of the equipment is improved, and the weight of the machine shell is controlled to be less than 200 g;
2) size: the design of small size, 75mm is multiplied by 75mm and multiplied by 40 mm;
3) color: black paint spraying and white silk-screen printing treatment enhance the aesthetic property of the shell.
The functions of each part of the radio receiving terminal 2 are shown in the following table:
table 3 wireless receiving terminal 2 composition and function list
The wireless receiving circuit mainly comprises 3 parts, namely a power supply circuit, a communication circuit, a power supply circuit and a Zigbee core circuit.
Power supply and communication circuit
A Micro USB interface is adopted to realize the power supply function of the wireless receiving terminal 2; meanwhile, a USB-to-serial port device FT232 is adopted to realize program downloading of the Zigbee singlechip microcomputer. Compared with the wireless flowmeter 1, the circuit principle design eliminates the function of lithium battery charging, and the circuit principle diagrams can refer to fig. 5-8.
Power supply circuit
As shown in fig. 9 and 10, VCC is converted into 3.3V for the Zigbee module to work.
Zigbee core circuit
The circuit design is the same as that of the wireless flowmeter 1, an E18-MS1-PCB module is selected, only an onboard antenna is changed into an external antenna, and wireless transmitting power is enhanced.
Polarity test software design
The polarity testing software is developed by using a Labview2014 platform, is communicated with the wireless receiving terminal 2 by using a serial port, can monitor the online state of the wireless flowmeter 1, and can measure the air injection state and the flow rate of the thruster 4.
Software composition and functionality
The polarity test software mainly comprises a serial port communication module, a networking configuration module, a flowmeter display module, an electric quantity display module and a start-stop module 5.
The functions of the modules are as follows:
a serial port communication module: configuring a serial port communication mode; opening and closing the serial port;
a networking configuration module: configuring a wireless flowmeter 1 and monitoring the working state of the wireless flowmeter;
a flowmeter display module: displaying the real-time flow value of each wireless flowmeter 1, and drawing a dynamic curve according to time, wherein the data updating rate is 45 Hz;
electric quantity display module: displaying the residual electric quantity of each wireless flowmeter 1 and prompting charging;
a start stop module: and performing conventional starting, stopping, exiting and other operations on the polarity test software.
Serial port communication module design
The serial port communication module realizes the following functions:
selecting a serial port number;
setting a baud rate;
setting a data bit, a check bit and a stop bit;
and opening and closing the serial port.
Networking configuration module design
The networking configuration module realizes the following functions:
the wireless flowmeter 1 is enabled by free selection, and single or multiple wireless flowmeters can be selected, and the number of the wireless flowmeters is 20 at most;
the tag name of the wireless flow meter 1 can be configured;
the state of the wireless flowmeter 1 can be configured, and an acquisition mode or a sleep mode is selected;
the source code test data can be optionally stored in real time.
Flowmeter display module design
The networking configuration module realizes the following functions:
the data of the wireless flowmeter 1 can be collected in real time and displayed in a curve mode;
the data updating time of each wireless flowmeter 1 is 5ms at most;
each wireless flowmeter 1 can display the data curve for the last 10 seconds;
the 4 flowmeter display modules form a group, can be flexibly configured to be opened or closed, and enhances the software operation fluency and curve display effect.
Electric quantity display module design
The electric quantity display module realizes the following functions:
displaying the battery voltage of each wireless flowmeter 1;
the remaining operating time of each wireless flowmeter 1 is displayed. The following table is an electric quantity display interface
| Voltage of battery (V) | Residual working time (h) | |
| |
4.0 | 5.0 |
| |
3.8 | 4.5 |
| |
3.9 | 4.5 |
| |
3.6 | 4.0 |
| |
3.3 | 2.0 |
| |
4.0 | 5.0 |
| |
3.6 | 4.0 |
| |
3.5 | 3.0 |
| |
3.2 | 1.5 |
Start and stop module
The start-stop module implements the following functions:
realizing the software starting function;
stopping the software;
reading data;
and (6) exiting the software.
According to the requirement of the task book on the portability of the testing equipment, the computer 3 in the scheme selects a reinforced notebook computer with the model of X500. The reinforced notebook is a portable computer 3 with a 15.6-inch LCD screen upper flip, consists of a host, a display and a keyboard, and is respectively subjected to shock absorption, reinforced installation design, IP protection design and EMC design.
The computer specification parameters are shown in table 4:
TABLE 4 Getac X500 specification parameter table
In addition, in the embodiment, the technical scheme is also adopted;
safety design
The safety design is mainly designed from the following aspects:
stringent compliance "GB 4793.1-1995 safety requirements for measuring, controlling and laboratory electrical equipment part 1: the safety requirement in the general requirements can meet the requirements of electric leakage and electric shock prevention;
the standard of Q/W416A-2007 spacecraft ground electrical test equipment safety requirement is met;
all interfaces are compatible with the environmental requirements and do not damage the environment;
does not contain materials which can accelerate the early failure of equipment or endanger health under normal use and storage conditions;
the material does not contain flammable and explosive materials;
the 220V power supply cable for the main power supply alternating current of the equipment adopts a standard single-phase three-wire plug, has a good grounding effect, and can ensure the safety of testers without exposure.
The standard operation, the normal work and the fault do not cause harm or danger to operators and equipment;
the connector is reliable in welding, firm in installation, reasonable in position and convenient to pull and insert; the device is reliable in welding and free of cold joint and leakage welding;
the method comprises the following steps of carrying out a copying test for not less than 72 hours before the equipment is formally used, and analyzing and comparing test results to ensure that equipment indexes meet user requirements;
the chassis and the power supply shell of the test equipment are well grounded; the connection relation of the ground wires is ensured to be clear and correct.
Reliability design
The reliability of the equipment is fully considered in the design of the scheme, and the scheme is mainly designed from the following aspects:
the mechanical structure design of the test equipment adopts a standard industrial structure, so that the firmness and reliability of the equipment are ensured. The structure of the device is successfully used in a plurality of projects completed by our company, and the effect is good.
The design is simplified: the device is designed in a simplified manner by adopting a mature testing technology, modules are as few as possible under the condition that the performance of the device is met in the design process, the circuit design is as simple as possible, the types and the number of raw materials, parts, components and assemblies are reduced, a key signal adopts a double-point double-line mode, and the overall use reliability is improved;
strictly controlling the components: the selection and control of the module and the components preferably select the components provided by certified qualified suppliers, the varieties and the specifications of the components are reduced as much as possible, the components with non-standard specifications are strictly controlled and selected, and the components with the quality grade higher than the industrial grade are selected for all the components.
Derating design: the stress (generally temperature stress and electric stress) borne by the component in the circuit is reduced, so that the basic failure rate is reduced, and the use reliability of the component is improved. The working temperature range of the components is required to be larger than that of the whole machine, the withstand voltage values of the components such as the resistor and the capacitor are 2 times larger than the rated working voltage, and the actual power consumption of the power supply module is not more than 70% of the rated power;
the method comprises the following steps of carrying out a copying test for not less than 72 hours before the equipment is formally used, and analyzing and comparing test results to ensure that equipment indexes meet user requirements;
strict management is performed in each link of feeding, inventory, processing, production, debugging and inspection, so that the quality consistency of the product is improved, the link of high failure rate is avoided, and the MTBCF index of the whole product is improved;
the product adopts a modular design, all parts are mutually independent, and the labor division is clear;
the test cable adopts a one-to-one connection mode, so that the processing is simple and the detection is convenient;
the test cable is clear in identification, and errors are prevented;
the connector connected with the test computer adopts a Y4-7 connector, and the connection is reliable.
Adaptive design of environment
Design of environment
The natural environment of the equipment includes temperature, humidity, etc., and the mechanical environmental factors include vibration, shock, acceleration, etc. The concrete measures are as follows:
electronic components with high quality grade are selected, and the temperature ranges of all the components can meet the range of-20 ℃ to 85 ℃. For the selected material, the processing performance and the welding performance of the material are considered, and the corrosion resistance of the material is not reduced after the material is processed.
Galvanic corrosion may be caused by different metals contacting each other, and thus the design is concerned with compatibility between materials, for example, stainless steel and aluminum alloys have good compatibility.
The influence of vibration and impact is fully considered in the structural design, and all the wires in the box body are classified and tied firmly.
Thermal design
In order to ensure the long-term continuous and stable operation of the test equipment, the influence of the test equipment due to temperature change needs to be considered during design. In order to control the continuous rise of the temperature to the maximum extent and ensure the long-term stable operation of the equipment, the following measures are taken in the aspect of thermal design:
the casing of the case is made of a material with good heat conduction performance, so that the heat conduction of the inner surface and the outer surface is enhanced;
the cooling fan is arranged in the case, the ventilation holes are reserved, a good cooling channel is provided, and the phenomena of high temperature, high heat and the like cannot occur in the test process of the equipment;
all cables and wiring welding are welded by adopting high-temperature-resistant wires, wires in the case are far away from high-power devices such as a power supply and the like as far as possible, and the influence of overhigh temperature on signals is prevented;
the special radiating fin is installed on the device with larger heat productivity or the copper is paved in a large area, so that the heat can be dispersed as soon as possible.
Maintainability design
In order to facilitate the change of the technical state of the joint test equipment, the following measures are adopted:
the system adopts a modular design, so that the separation of equipment faults is facilitated;
the structure is well designed, so that the operation of operators is facilitated;
the clear identification is convenient for operators to quickly find correct equipment;
detailed technical use instructions are convenient for operators to operate;
the software design adopts a modular structure design so as to be convenient for maintenance.
Self-checking and standard checking design
The test equipment is provided with special software for self test and standard inspection, and is specially used for self test and standard inspection of the equipment.
The equipment has detailed test rules and test records during delivery;
when the equipment is delivered, detailed calibration standards are provided for a user to calibrate;
the equipment connectors, cables, panels and the like are all clearly marked, so that operators can operate the equipment conveniently;
the equipment has a clear use instruction, and each part has a clear mark, so that the operation of an operator is facilitated;
the test equipment has good detachability, simple physical connection, good electric connection performance and convenient maintenance.
Performance index comparison compliance
TABLE 5 comparison of Performance indicators
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 the same; 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 or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (9)
1. A wireless traffic collection system, comprising; the wireless flowmeter, the wireless receiving terminal and the computer;
the wireless flowmeter is connected with the wireless receiving terminal through a wireless network, and the wireless receiving terminal is connected with the computer through a USB cable;
the wireless flow meter is arranged at a nozzle of the thruster and used for detecting the jet flow of the thruster, converting detected gas circulation data into electric signals and sending the electric signals to the wireless receiving terminal, the wireless receiving terminal transmits the electric signals to the computer through a USB cable, and the computer displays the jet state of the thruster in real time.
2. The wireless traffic collection system of claim 1,
the wireless flowmeter comprises a shell, a flow sensor, a wireless sending circuit module and a storage battery, wherein the flow sensor and the storage battery are arranged in the shell, the flow sensor converts received gas sprayed out of the thruster into an electric signal and sends the electric signal to the Zigbee wireless module of the wireless sending circuit module, and then the electric signal is sent to the wireless receiving terminal through the Zigbee wireless module.
3. The wireless traffic collection system of claim 2,
the wireless transmitting circuit further comprises a charging circuit module, a downloading circuit module and a power circuit module, wherein the power circuit module is connected with the charging circuit module to supply power to the storage battery and the Zigbee wireless module, and the downloading circuit module is connected with the Zigbee wireless module.
4. The wireless traffic collection system of claim 3,
the storage battery is a polymer lithium battery.
5. The wireless traffic collection system of claim 2,
the shell is manufactured by injection molding and integral molding.
6. The wireless traffic collection system of claim 2,
the flow sensor is installed at a nozzle of the thruster through a fixing device.
7. The wireless traffic collection system of claim 6,
the fixing device is a clamp, and the clamp is made of plastic materials.
8. The wireless traffic collection system of any of claims 1-7,
each wireless receiving terminal can receive the electric signals of twenty wireless flow meters, and each wireless flow meter is provided with a unique number.
9. The wireless traffic collection system of claim 8,
the shell of the wireless receiving terminal is made of aluminum alloy materials in a molding mode.
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| CN201920283899.0U CN209894250U (en) | 2019-03-06 | 2019-03-06 | Wireless flow acquisition system |
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| CN201920283899.0U CN209894250U (en) | 2019-03-06 | 2019-03-06 | Wireless flow acquisition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296270A (en) * | 2023-02-15 | 2023-06-23 | 中国人民解放军战略支援部队航天工程大学 | Method and system for monitoring on-orbit working state of target belt type laser ablation micro-thruster |
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2019
- 2019-03-06 CN CN201920283899.0U patent/CN209894250U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296270A (en) * | 2023-02-15 | 2023-06-23 | 中国人民解放军战略支援部队航天工程大学 | Method and system for monitoring on-orbit working state of target belt type laser ablation micro-thruster |
| CN116296270B (en) * | 2023-02-15 | 2024-04-26 | 中国人民解放军战略支援部队航天工程大学 | Method and system for monitoring on-orbit working state of target belt type laser ablation micro-thruster |
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