CN202086996U - Detecting system of fire truck - Google Patents

Abstract

The utility model relates to a detecting system of a fire truck, wherein the detecting system of the fire truck comprises a host computer, a data transmitting unit and a detecting instrument unit. The data transmitting unit uses a distributed RS485 serial bus, and the host computer and the detecting instrument unit are connected with each other by a distributed baud rate-variable RS485 bus to finish the communication between the host computer and a lower computer. The detecting instrument unit comprises a temperature instrument, a flow rate instrument, a pressure instrument and a rotating speed and rotation torque instrument unit. Compared with the prior art, the detecting system of the fire truck has the advantages of: reliable quality, stable operation, reasonable design, high integration density, powerful function, convenience in operation and high automation level.

Description

A fire truck detection system

technical field

The utility model relates to the field of fire truck quality testing, in particular to a fire truck detection system.

Background technique

With the vigorous development of my country's economic construction and reform and opening up, people pay more attention to the prevention of disasters, especially fires. As an important equipment for disaster relief and fire fighting, the quality and performance of fire trucks are particularly critical. For firefighting equipment supervision departments and fire truck manufacturers, a fire truck comprehensive quality inspection system with reliable quality, stable operation and reasonable design is a reliable guarantee for the production quality of fire trucks.

The fire truck comprehensive parameter quality inspection system refers to the state parameter inspection of the fire truck running for a long time before the fire truck leaves the factory. It mainly includes a device for detecting the flow, pressure, temperature, torque, speed, power parameters, etc. of the water pump in the continuous working state of the fire truck waterway system. During the detection process, the actual parameters of the detection system are changed according to different environmental conditions, so that To achieve accurate and reliable detection results.

At present, there are many defects in the quality inspection system of fire trucks in the industry, mainly including the following aspects:

1. There is a lack of special detection instruments specially designed for the production of fire truck systems:

Simply modifying the detection instrument by adding a communication interface or A/D pickup of the output signal cannot meet the needs of the fire truck detection system; the sensor selection does not take into account that the sensor used should have anti-vibration and stability The special requirements of good performance, high accuracy, high pressure resistance, fast change, etc., cannot adapt to the strong vibration characteristics of fire trucks; at the same time, some sensors do not have transmitters, which are not suitable for long-distance anti-interference transmission of the detection system.

2. The bus structure is simple and unreasonable:

The use of microcomputer plug-in cards with too concentrated connections reduces the stability and maintainability of the system; the use of RS485 bus, which is only a master-slave structure, has low communication efficiency and small amount of information, which will delay the sending of important data and increase Large data volume and waiting time cannot meet the needs of emergencies.

3. The results of the test data are single, and the characteristics of each data are not effectively analyzed:

The natural characteristics of the ambient temperature and water temperature are not considered, and the detection results cannot be effectively analyzed; when the pressure is detected, the influence of the fluctuation of the working environment temperature and working voltage of the pressure sensor on its accuracy is not considered.

4. The automation level of the detection system is low:

Most of the detection systems proposed by research institutes stay in the original stage of manual observation and manual operation or the semi-manual, semi-automatic and semi-automatic stage, with a low level of automation and limited ability to deal with sudden failures.

Utility model content

The purpose of the utility model is to provide a reliable quality, stable operation, design Reasonable online fire truck detection system based on data fusion technology.

The purpose of the utility model can be achieved through the following technical solutions: a fire truck detection system, including a host computer, a data transmission unit and a detection instrument unit; the host computer and the detection instrument unit are connected through the data transmission unit to complete the communication .

The data transmission unit adopts a distributed RS485 serial bus, which is a kind of master-slave communication, supplemented by slave masters, and uses different inspection frequencies to realize data transmission according to the change speed of different quantities. RS485 serial bus technology with variable baud rate; the host computer includes a computer monitoring platform; the man-machine interface of the computer monitoring platform includes a login window, a detection parameter input window, a detection main interface, a real-time data report window, and a data query window , user rights maintenance window, use help and system connection diagram.

The detection instrument unit includes temperature instrument, flow instrument, pressure instrument and rotational speed torque instrument unit.

The temperature instrument unit includes a main control module, a temperature acquisition module, a display module and a data communication module; the temperature acquisition module detects the ambient temperature, the input temperature of the bearing seat and the output temperature of the bearing seat.

Further, the temperature acquisition module includes a temperature sensor, and the temperature sensor adopts a Pt100 platinum resistance.

The flow meter unit includes a main control module, a flow sensing and transmitting module, a display module and a data communication module; the flow sensing and transmitting module detects the low-pressure flow, medium-pressure flow and high-pressure flow of the water pipe channel.

Further, the flow sensing and transmitting module includes a flow measurement sensor, and the flow measurement sensor adopts a turbine flow sensor.

The pressure instrument unit includes a main control module, a pressure acquisition module, a display module and a data communication module; the pressure acquisition module detects ambient pressure, vacuum inlet pressure, outlet low pressure, and outlet high pressure.

Further, the pressure acquisition module includes a pressure sensor and a pressure transmitter, the pressure sensor adopts a YGS series inductive micro-pressure sensor, and the pressure transmitter adopts a YGS-03 pressure transmitter.

The speed torque instrument unit includes a main control module, a speed torque measurement module, a display module and a data communication module; the speed torque measurement module detects the water pump speed, water pump torque, and water pump power.

Further, the rotational speed torque measurement module includes a rotational speed torque measurement sensor, and the rotational speed torque measurement sensor adopts a ZJ sensor.

The above-mentioned fire truck detection system mainly checks the waterway system of the fire truck in the continuous working state at the scene of ambient temperature, atmospheric pressure, motor temperature, speed, fuel tank temperature, fire pump pressure, outlet pipe flow, fire pump Parameters such as speed, torque, power, etc. are detected by their respective suitable sensors, converted into standard electrical signals or other forms of electrical signals by the transmitter, and transmitted to the detection instrument of the control cabinet, and the detected values are dynamically displayed in real time. At the same time, the collected data is transmitted to the computer monitoring platform of the upper computer through the distributed RS485 bus, and the data is analyzed and processed through the monitoring platform, displayed on the user interface and recorded, output and printed.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The system equipment of the utility model has simple structure, high integration, powerful functions, convenient operation and high automation level.

2. The utility model uses a unified integrated interface, which can effectively detect fire trucks and establishes a friendly man-machine interface.

3. The utility model adopts the software monitoring platform developed by data fusion technology, which can analyze and process data more accurately, and can accurately detect the actual comprehensive quality of fire trucks.

4. The multi-parameter signal detection scheme proposed by the utility model can utilize multiple information resources at the same time, and has the advantages of high reliability, strong survivability, and large observation space.

5. The distributed variable baud rate RS485 master-slave bus structure proposed by the utility model solves the communication blocking problem of the traditional master-slave communication mode.

6. The detection accuracy of the utility model system is high, which effectively guarantees the factory quality of fire trucks, realizes remote real-time detection, fundamentally changes the detection method of domestic fire trucks, and fills the gap in the comprehensive detection system of domestic fire trucks.

Description of drawings

Fig. 1 system structural block diagram of the present utility model;

Fig. 2 block diagram of the utility model system temperature instrument system;

Fig. 3 block diagram of the utility model system flow meter system;

Fig. 4 system block diagram of the utility model pressure instrument system;

Fig. 5 is a block diagram of the rotational speed and torque instrument system of the utility model system.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example:

As shown in Figure 1, a fire truck detection system includes a host computer, a data transmission unit and a detection instrument unit; the data transmission unit adopts a distributed RS485 serial bus; the detection instrument unit mainly detects the ambient temperature located at the scene , Atmospheric pressure, motor temperature, rotation speed, fuel tank temperature, fire pump pressure, outlet pipe flow, fire pump speed, torque, power and other parameters are summarized into temperature gauge, pressure gauge, flow gauge and speed switch There are four categories of moment meter units. The upper computer and the detection instrument unit are connected through a distributed RS485 bus with variable baud rate to complete the communication between the upper computer and the lower computer.

In the system, the upper computer system is based on the Windows XP operating system, using the decision-making module established by data fusion technology, and using VB6 to develop a data monitoring software platform based on MCGS. It includes the main control module that completes command sending and real-time operation, the data processing module that analyzes the various information data transmitted from the lower computer and performs fusion analysis and processing, and the graphical display module that can visualize the working status of the fire truck in real time.

In this system, the distributed RS485 bus structure with variable baud rate adopted by the data transmission module is a master-slave communication-based, supplemented by a slave-based multi-master solution, using different inspection frequencies to complete data communication .

In this system, the temperature instrument system shown in Figure 2 is composed of a main control module, a temperature acquisition module, a display module and a data communication module. Among them, the temperature acquisition module adopts Pt100 platinum resistance with the advantages of anti-vibration, good stability, high accuracy, and high pressure resistance as the temperature sensor to collect the ambient temperature on site, the input temperature of the bearing seat and the output temperature of the bearing seat, which are converted by the transmitter Standard electrical signals or other forms of electrical signals are displayed on the instrument after being processed by the main control module, and at the same time, the data is transmitted to the host computer through the data communication module, and the host computer performs data fusion analysis to obtain the correct result.

In this system, the flow meter system shown in Figure 3 is composed of a main control module, a flow sensor and transmission module, a display module and a data communication module. Among them, the flow sensing and transmitting module uses a turbine flow sensor to transmit the frequency flow signals of the low-pressure flow, medium-pressure flow, and high-pressure flow of the outlet pipe channel to the main control module after filtering and shaping, and analyze and process them on the instrument. At the same time, the data It is transmitted to the host computer through the communication circuit for analysis and processing.

In this system, the pressure instrument system shown in Figure 4 is composed of a main control module, a pressure acquisition module, a display module and a data communication module. Among them, the pressure acquisition module adopts YGS series inductive micro-pressure sensor to collect the environmental pressure, vacuum inlet pressure, outlet low pressure and outlet high pressure and other pressure data on site through YGS-03 pressure transmitter, and then transmit them to the main control module. The pressure data is displayed after processing, and the data is transmitted to the host computer monitoring platform at the same time.

In this system, the speed and torque instrument system shown in Figure 5 is composed of a main control module, a speed and torque measurement module, a display module and a data communication module. Among them, the speed and torque measurement module converts the torque and speed signals such as water pump speed, water pump torque and water pump power into two electrical signals with a certain phase difference through the ZJ sensor using the principle of magnetoelectric conversion-phase difference, and sends them to the main control. The module performs processing, and displays the measured value of torque and rotational speed obtained after the processing operation, and sends the processing result to the host computer.

It can be seen from the above examples that the system structure of this example is simple, easy to use, and superior in performance, which can fully meet the needs of the fire truck detection system. Through the application of this example, the production quality of the fire truck is effectively guaranteed.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned method, as long as various improvements of the method concept and technical solutions of the utility model are adopted, or the utility model can be directly implemented without improvement. Those applied to other occasions are all within the protection scope of the present utility model.

Claims (10)

1. fire fighting truck detection system, it is characterized in that: described fire fighting truck detection system comprises host computer, data transmission unit and instrumentation unit; Described host computer is connected by described data transmission unit with the instrumentation unit, finishes communication.

2. fire fighting truck detection system according to claim 1 is characterized in that: described data transmission unit adopts distributed RS485 universal serial bus; Described host computer comprises the computer monitoring platform; The man-machine interface of described computer monitoring platform comprises login window, detected parameters input window, detects main interface, real time data form window, data query window, user right maintenance window, use and help and system's line schematic diagram.

3. fire fighting truck detection system according to claim 1 and 2 is characterized in that: described instrumentation unit comprises thermometric instrument, flow instrument, manometer and rotational speed and torque instrument pack.

4. fire fighting truck detection system according to claim 3 is characterized in that: described thermometric instrument unit comprises main control module, temperature collect module, display module and data communication module; Described temperature collect module testing environment temperature, bearing block input temp and bearing block output temperature.

5. fire fighting truck detection system according to claim 4 is characterized in that: described temperature collect module comprises temperature sensor, and described temperature sensor adopts the Pt100 RTD.

6. fire fighting truck detection system according to claim 1 and 2 is characterized in that: described flow instrument unit comprises main control module, flow sensing transmitting module, display module and data communication module; Described flow sensing transmitting module detects the low pressure flow of water pipe channel, middle baric flow amount and high pressure flow.

7. fire fighting truck detection system according to claim 6 is characterized in that: described flow sensing transmitting module comprises flow measuring sensor, and described flow measuring sensor adopts turbine flow transducer.

8. fire fighting truck detection system according to claim 1 and 2 is characterized in that: described manometer unit comprises main control module, pressure acquisition module, display module and data communication module; Described pressure acquisition module testing environment pressure, vacuum inlet pressure, outlet low pressure, outlet high pressure.

9. fire fighting truck detection system according to claim 8, it is characterized in that: described pressure acquisition module comprises pressure sensor and pressure transmitter, described pressure sensor adopts YGS series inductance micro-pressure sensor, and described pressure transmitter adopts YGS-03 type pressure transmitter.

10. fire fighting truck detection system according to claim 1 and 2 is characterized in that: described rotational speed and torque instrument pack comprises main control module, rotational speed and torque measurement module, display module and data communication module; Described rotational speed and torque measurement module detects pump rotary speed, water pump torque, pump power.

Images