CN205301926U - Embedded high -speed water pump vibrations data acquisition system based on DSP - Google Patents

Abstract

The utility model provides an embedded high -speed water pump vibrations data acquisition system based on DSP, including setting up in the acquisition unit of water pump, the communication unit who is used for data communication and server, acquisition unit is including the acceleration vibrations sensor of gathering water pump vibrations data, carries out the high -speed collection module that gathers to the data of sensor collection with acceleration vibrations sensor being used for of being connected, the utility model discloses low cost, work efficiency height can improve water pump crowd reliability of operation greatly, accomplish the water pump trouble and discover in advance, improve the water pump and maintain maintenance schedule nature, avoid the production loss that produces because of water pump upcropping trouble. Simultaneously applied this system monitors water pump vibrations data can shake the cost of monitoring by the greatly reduced water pump, improves the benefit of water supply production.

Description

DSP-based Embedded High-speed Water Pump Vibration Data Acquisition System

technical field

The utility model relates to the field of automation, in particular to a DSP-based embedded high-speed water pump vibration data acquisition system.

Background technique

A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsions, and suspoemulsions. It can also transport liquids, gas mixtures and liquids containing suspended solids. It is the most common and important production equipment in water supply enterprises. The quality of its operation is directly related to the production safety of water supply enterprises. The water pump is a high-speed mechanical device, and whether its vibration state is normal or not directly reflects whether the equipment is running normally. Since the vibration state of the water pump is a rapidly changing amount of data, the current acquisition and monitoring method is mainly to use an industrial computer to configure the acquisition data card to perform A/D sampling on the analog output of the acceleration sensor installed on the water pump, and digitize the sampled data. Information is analyzed and stored. This method requires that industrial computers and corresponding data acquisition cards must be configured at each collection point of the water pump room, and the acquisition cost is high and the environmental requirements of the machine room are relatively high. The number of secondary water supply pump rooms is huge, and the environment of the computer room is dark and humid. Using traditional methods to collect water not only costs a lot, but also the operation stability of the collection equipment cannot be guaranteed. Therefore, there is an urgent need for a low-cost, reliable high-speed vibration data acquisition system to effectively and reliably collect and monitor the vibration data of water pumps in water supply enterprises.

Utility model content

In view of this, the utility model provides a DSP-based embedded high-speed water pump vibration data acquisition system to solve the above problems.

The DSP-based embedded high-speed water pump vibration data acquisition system provided by the utility model includes an acquisition unit arranged on the water pump, a communication unit for data communication, and a server;

The acquisition unit includes an acceleration vibration sensor for collecting vibration data of the water pump, and a high-speed acquisition module connected to the acceleration vibration sensor for collecting data collected by the sensor;

The output end of the acquisition module is connected to the input end of the data processing module, the data processing module is connected to the communication module, and the communication module is connected to the server.

Further, the server includes a storage module for data storage, an analysis module for analyzing and obtaining the operating vibration curve of each water pump, and comparing the operating vibration curve with a preset experience curve to judge whether the water pump is running The judging module whether the state is normal or not.

Further, the high-speed acquisition module includes an analog-to-digital conversion sampling sub-module for sampling and obtaining digital signals after analog-to-digital conversion, a front-end processing sub-module for processing the digital signals, and a transmission for transmitting digital signals An interface sub-module, the analog-to-digital conversion sampling sub-module is connected to the front-end processing sub-module, and the front-end processing sub-module is connected to the transmission interface sub-module.

Further, it also includes an early-warning module for providing an early-alarm for the failure defect of the water pump according to the judgment result of the judging module.

Further, the communication unit includes a wireless communication module and a site concentrator connected to the wireless communication module for storing data on site, and the transmission interface sub-module is connected to the site concentrator.

Further, the number of the acceleration vibration sensor and the high-speed acquisition module connected with the acceleration vibration sensor is multiple, the field concentrator is arranged in each water pump machine room, and the multiple acceleration vibration sensors and high-speed acquisition modules in each water pump machine room The modules are respectively connected to the field concentrators in the corresponding computer room.

Further, the wireless communication module includes a GPRS, 3G or 4G module.

Further, an external interface unit for connecting with external equipment is also included.

Beneficial effects of the utility model: Compared with the traditional industrial computer plus acquisition card, the utility model does not need to configure industrial computers and corresponding data acquisition cards in each water pump room acquisition point, and has the advantages of fast processing speed, flexibility, accuracy, The advantage of small size, through the high-speed digital signal processor, is less affected by environmental factors, and the reliability is improved. The utility model is low in cost and high in work efficiency, and can greatly improve the reliability of the operation of the water pump group, so that the failure of the water pump can be detected in advance. Improve the planning of water pump maintenance and repair, and avoid production loss due to sudden failure of water pumps. At the same time, applying the system to monitor the vibration data of the water pump can greatly reduce the cost of water pump vibration monitoring and improve the efficiency of water supply production.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a schematic diagram of the principle of the utility model.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further: Fig. 1 is the schematic diagram of principle of the utility model.

As shown in Figure 1, the DSP-based embedded high-speed water pump vibration data acquisition system in the present embodiment includes an acquisition unit arranged on the water pump, a communication unit and a server for data communication; The acceleration vibration sensor, the high-speed acquisition module used to collect the data collected by the sensor connected with the acceleration vibration sensor; the output end of the acquisition module is connected with the input end of the data processing module, and the data processing module is connected with the communication module , the communication module is connected to the server. The DSP-based embedded high-speed water pump vibration data acquisition system in this embodiment can be used in multiple water pump machine rooms, and collect data through the acceleration vibration sensors and high-speed acquisition modules of multiple water pump equipment installed in each water pump machine room.

In this embodiment, the analog signal transmitted from the vibration sensor of the water pump is collected by the acquisition unit, and the analog signal is sampled and converted from analog to digital to obtain a digital signal and obtain valid data. The front-end acquisition device of the DSP-based embedded high-speed water pump vibration data acquisition system in this embodiment is an embedded DSP high-speed acquisition module. Compared with the traditional method of industrial computer plus acquisition card, the cost is greatly reduced. The embedded DSP high-speed acquisition module uses a professional high-speed digital signal processor (DSP), compared with the traditional industrial computer plus acquisition card, it is less affected by environmental factors and its reliability is improved.

In this embodiment, the server includes a storage module for data storage, an analysis module for analyzing and obtaining the operation vibration curve of each water pump, and a comparison module for comparing the operation vibration curve with a preset experience curve to determine whether the water pump The judging module of whether the running state of the system is normal. In this embodiment, the vibration data of each water pump at the front end is stored and analyzed by the server to obtain the operating vibration curve of each water pump, and the judgment information of whether the operating state of the water pump is normal is obtained by comparing it with the experience curve in the expert database. Provide early warning of pump failure defects. Through the collection and analysis of such water pump vibration data, the reliability of the operation of the water pump group can be greatly improved, the failure of the water pump can be detected in advance, the planning of maintenance and repair of the water pump can be improved, and the production loss caused by the sudden failure of the water pump can be avoided. At the same time, applying the system to monitor the vibration data of the water pump can greatly reduce the cost of water pump vibration monitoring and improve the efficiency of water supply production.

In this embodiment, the high-speed acquisition module includes an analog-to-digital conversion sampling sub-module for sampling and obtaining digital signals after analog-to-digital conversion, a front-end processing sub-module for processing the digital signals, and a front-end processing sub-module for transmitting digital signals The transmission interface sub-module, the analog-to-digital conversion sampling sub-module is connected to the front-end processing sub-module, and the front-end processing sub-module is connected to the transmission interface sub-module. The A/D sampling sub-module will receive the analog signal from the water pump vibration sensor and sample and convert the analog signal to obtain a digital signal. The digital signal transmitted by the A/D sampling sub-module is filtered and front-end processed by the front-end processing sub-module to obtain effective data. Through the transmission interface sub-module, the digitized vibration data is transmitted to the field collector through various transmission methods.

In this embodiment, it also includes an early warning module for providing a pre-alarm to the fault defect of the water pump according to the judgment result of the judgment module, and obtains judgment information on whether the operating state of the water pump is normal by comparing it with the experience curve in the expert database. The early warning module provides an early warning for the fault defect of the water pump.

In this embodiment, the communication unit includes a wireless communication module and a site concentrator connected to the wireless communication module for storing data on site, and the transmission interface sub-module is connected to the site concentrator. The field concentrator is connected via the network.

In this embodiment, the number of the acceleration vibration sensor and the high-speed acquisition module connected with the acceleration vibration sensor is multiple, the field concentrator is arranged in each water pump machine room, and multiple acceleration vibration sensors in each water pump machine room The sensor and the high-speed acquisition module are respectively connected to the field concentrator in the corresponding computer room. As shown in Figure 1, this embodiment can be applied to multiple water pump rooms and multiple water pump equipment arranged in each water pump room, and the digital data is stored on-site through the field concentrator and then uploaded to the background central server. The wireless communication module includes Long-distance wireless transmission modules such as GPRS, 3G or 4G modules can also choose WIFI, wired Ethernet, ZIGBEE, Bluetooth, etc. to communicate between the field concentrator and the transmission interface sub-module according to the actual situation of the site. While storing data, the field concentrator transmits the data to the background central server located in the monitoring center through the wireless communication module for storage, display, analysis and alarm. Preferably, the mobile terminal can be connected to the server to display, inquire and receive an alarm for the detected results. The mobile terminal can be equipped with a mobile device such as a smart phone or a tablet computer with a corresponding APP program, and the user can log in through the server. Query the results of monitoring and detection. In order to ensure the security of data, the server can set up an authentication unit to manage the rights of the operating users through the authentication unit. The server can send a short message or voice message with early warning information to the user's mobile phone through the early warning module. Call, so that users can get the early warning information at the first time, respond in time, and improve work efficiency.

In this embodiment, an external interface unit for connecting with external devices is also included, and the external expansion function of the high-speed acquisition module can be realized through the external interface unit, and the connection with other devices can be realized.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (8)

1. the embedded high-speed water pump vibration data acquisition system based on DSP, it is characterised in that: comprise be arranged at water pump collecting unit, for the communication unit of data corresponding and server;

Described collecting unit comprises the acceleration shock sensor gathering water pump vibration data, the high speed acquisition module for the data of sensor collection being gathered being connected with acceleration shock sensor;

The output terminal of described acquisition module is connected with the input terminus of data processing module, described data processing module and the model calling that communicates, and described communication module is connected with server.

2. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 1, it is characterized in that: described server comprise the memory module for carrying out data storage, for analyze and obtain the operation shock curve of every platform water pump analysis module and for by run shock curve with preset empirical curve contrast, judge whether the running status of water pump judges module normally.

3. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 1, it is characterized in that: described high speed acquisition module comprises the analog to digital conversion sampling submodule block for carrying out sampling and obtaining after analog to digital conversion numerary signal, for the front-end processing submodule block that described numerary signal processed with for the transmission interface submodule block of transmission of digital signals, described analog to digital conversion sampling submodule block and the sub-model calling of front-end processing, front-end processing submodule block and the sub-model calling of transmission interface.

4. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 2, it is characterised in that: also comprise for according to judging that the accident defect of water pump is provided the warning module reported to the police in advance by the judged result of module.

5. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 3, it is characterized in that: the on-the-spot concentrator for data carry out on-the-spot storage that described communication unit comprises radio communication module and is connected with radio communication module, described transmission interface submodule block is connected with on-the-spot concentrator.

6. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 5, it is characterized in that: described acceleration shock sensor and the quantity of high speed acquisition module being connected with acceleration shock sensor are multiple, described on-the-spot concentrator is arranged in each water pump machine room, and multiple acceleration shock sensor and high speed acquisition module in each water pump machine room connect with the on-the-spot concentrator in corresponding machine room respectively.

7. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 5, it is characterised in that: described radio communication module comprises GPRS, 3G or 4G module.

8. the embedded high-speed water pump vibration data acquisition system based on DSP according to claim 1, it is characterised in that: also comprise the external interface unit for docking with peripheral equipment.