CN105241525A - Wireless ultrasonic water level instrument - Google Patents

Abstract

The invention discloses a wireless ultrasonic water level meter, which comprises: an ultrasonic probe module, which is used to convert an electric pulse signal into an ultrasonic signal and send it outward, and receives the returned ultrasonic signal; an ultrasonic signal processing module, which is used to generate a pulse of a certain frequency The signal is sent to the ultrasonic probe, and the received ultrasonic signal is processed; the microcontroller module is used to control the transmission of the ultrasonic signal of the ultrasonic probe module and the ultrasonic signal processing of the ultrasonic signal processing module, and calculate the ultrasonic signal according to the processed ultrasonic signal Water level height; wireless data transceiver module, used to send the water level calculated by the microcontroller module to the outside through wireless, and forward the working parameter data of the ultrasonic probe module and ultrasonic signal processing module sent externally to the microcontroller device module. The wireless ultrasonic water level gauge disclosed by the invention can save the tedious wiring process in the early stage and save the cost.

Description

A wireless ultrasonic water level meter

technical field

The invention relates to the field of wireless communication technology and measurement technology, in particular to a wireless ultrasonic water level meter.

Background technique

Water level measurement is an indispensable part of model experiments. The main types of existing water level measuring instruments are telemetry float type water level gauges, pressure type water level gauges, ultrasonic water level gauges, radar water level gauges, laser water level gauges and electronic water level gauges. Ultrasonic water level gauges are easy to install, solid structure, no moving parts, high reliability, long life, no need to build water level wells, high precision, economical and durable and other advantages have been widely used.

At present, the ultrasonic water level gauge used in most model tests is a wired water level gauge, and the water level data is transmitted to the data processing center or repeater through the communication cable. These wired ultrasonic water level gauges have many deficiencies in use: 1. If there are many water level collection points, multiple water level gauges are needed, which requires a lot of transmission cables; 2. When the transmission distance is relatively long, the signal attenuation is serious. The data error rate is relatively high. To ensure the validity of the data, it is necessary to add auxiliary equipment to effectively amplify the signal; 3. The flexibility of the wired ultrasonic water level meter is poor. If the measurement position needs to be changed, it needs to be rewired; There are motors and other high electromagnetic interference equipment working next to the transmission cable of the ultrasonic water level meter, which will increase the probability of data error; 5. The cost is high, and the price of the transmission cable is relatively expensive. Generally more expensive.

Contents of the invention

The purpose of the present invention is to provide a wireless ultrasonic water level gauge, which transmits data in a wireless manner, which saves the complicated wiring process in the early stage and saves costs.

The purpose of the present invention is achieved through the following technical solutions:

A wireless ultrasonic water level meter, comprising: an ultrasonic probe module, an ultrasonic signal processing module, a microcontroller module and a wireless data transceiver module; wherein:

The ultrasonic probe module is used to convert the electric pulse signal sent by the ultrasonic signal processing module into an ultrasonic signal and send it outward, and convert it into a receiving mode after sending, receive the returned ultrasonic signal and transmit it to the ultrasonic signal processing module ;

The ultrasonic signal processing module is used to generate a pulse signal of a certain frequency and send it to the ultrasonic probe, and process the received ultrasonic signal and transmit it to the microcontroller module;

The microcontroller module is used to control the transmission of the ultrasonic probe module ultrasonic signal and the ultrasonic signal processing of the ultrasonic signal processing module, and calculate the water level according to the processed ultrasonic signal;

The wireless data transceiver module is used to send the water level calculated by the microcontroller module to the outside in a wireless manner, and forward the externally sent working parameter data of the ultrasonic probe module and the ultrasonic signal processing module to the micro-controller module. controller module.

Further, it also includes:

The parameter setting module is used to process the parameters input by the user and send them to the microcontroller module, and the microcontroller module controls the ultrasonic probe module and the ultrasonic signal processing module according to the relevant parameters;

The display module is used to display the water level calculated by the microcontroller module and the parameters currently set.

Further, it also includes: a power supply module for respectively supplying power to the ultrasonic probe module, ultrasonic signal processing module, microcontroller module, parameter setting module, wireless data transceiver module and display module.

It can be seen from the above-mentioned technical solution provided by the present invention that the wireless transmission of data can not only take advantage of the non-directionality of radio frequency signals, not being affected by obstacles, and the advantages of long remote control distance, but also bidirectional transmission, which has a certain control effect ; At the same time, it can also transmit and receive control data and measurement data over a long distance, and has extremely low power consumption, no wiring is required, and the cost is low.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is a schematic diagram of a wireless ultrasonic water level gauge provided by an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example

The embodiment of the present invention provides a wireless ultrasonic water level gauge, as shown in Figure 1, which mainly includes: an ultrasonic probe module, an ultrasonic signal processing module, a microcontroller module and a wireless data transceiver module; wherein:

The ultrasonic probe module cooperates with the ultrasonic signal processing module. The ultrasonic probe module is used to convert the electric pulse signal sent by the ultrasonic signal processing module into an ultrasonic signal and send it outward, and convert it into a receiving mode after sending, receive the returned ultrasonic signal and transmit it to the ultrasonic signal processing module ; In the embodiment of the present invention, the ultrasonic probe module adopts an integrated receiving and transmitting ultrasonic probe, which can reduce power consumption and reduce the volume of the ultrasonic water level gauge.

The ultrasonic signal processing module is used to generate a pulse signal of a certain frequency (for example, the frequency is 40KHz) and send it to the ultrasonic probe, and process the received ultrasonic signal and transmit it to the microcontroller module.

The microcontroller module is used to control the transmission of the ultrasonic probe module ultrasonic signal and the ultrasonic signal processing of the ultrasonic signal processing module, and calculate the water level height according to the processed ultrasonic signal, that is, calculate according to the time interval between ultrasonic transmission and reception Water level height.

The wireless data transceiver module is used to send the water level calculated by the microcontroller module to the outside in a wireless manner, and forward the externally sent working parameter data of the ultrasonic probe module and the ultrasonic signal processing module to the micro-controller module. controller module.

In addition, the wireless ultrasonic water level gauge also includes:

The parameter setting module is used to process the parameters input by the user and send them to the microcontroller module, and the microcontroller module controls the ultrasonic probe module and the ultrasonic signal processing module according to the relevant parameters;

That is, parameters can be set in two ways, one is to set manually through the parameter setting module, and the other is to receive corresponding parameters through the wireless data transceiver module. The working parameter data of the ultrasonic probe module and the ultrasonic signal processing module are conventional parameter data, and users can adjust specific values according to actual needs.

The display module is used for displaying the water level calculated by the microcontroller module and the set parameters.

The power supply module is used to supply power to the ultrasonic probe module, ultrasonic signal processing module, microcontroller module, parameter setting module, wireless data transceiver module and display module respectively.

The wireless ultrasonic water level meter provided by the embodiment of the present invention sends the water level data to the outside through the radio frequency signal, and the radio frequency signal propagates in the space in the form of electromagnetic waves, without relying on other transmission media. It has many advantages over wired data transmission. The present invention transmits water level data in a wireless manner, which has many advantages: 1. Data transmission does not require transmission cables, which saves the cumbersome wiring process; 2. Strong flexibility, when the position of the ultrasonic water level gauge is changed, it can be done without rewiring Normal communication; 3. The transmission distance is long, and the transmission distance of wireless signals can reach about 200 meters. When long-distance transmission is required, wireless relay points or signal amplification equipment can be added, which can be used for long-distance data transmission; 4. Low cost, Use wireless to transmit signals without expensive transmission cables;

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (3)

1. a wireless ultrasonic limnimeter, is characterized in that, comprising: ultrasonic probe module, ultrasonic signal processing module, micro controller module and wireless receiver module; Wherein:

Described ultrasonic probe module, electric impulse signal for ultrasonic signal processing module being sent transfers ultrasonic signal to and outwards sends, and receiving mode is converted to after being sent, receive the ultrasonic signal returned and transfer to described ultrasonic signal processing module again;

Described ultrasonic signal processing module, for generation of certain frequency pulse signal and be sent to ultrasonic probe, and transfer to described micro controller module after the ultrasonic signal received is processed;

Described micro controller module, for the ultrasonic signal process of the transmission and ultrasonic signal processing module that control ultrasonic probe module ultrasonic signal, and calculates height of water level according to the ultrasonic signal after process;

Described wireless receiver module, height of water level for being calculated by micro controller module wirelessly outwards sends, and the running parameter data retransmission of the ultrasonic probe module sent outside and ultrasonic signal processing module is to described micro controller module.

2. wireless ultrasonic limnimeter according to claim 1, is characterized in that, also comprise:

Parameter setting module, is sent to micro controller module after the parameter for inputting user processes, and is controlled according to correlation parameter by micro controller module to ultrasonic probe module and ultrasonic signal processing module;

Display module, for showing the height of water level and current set parameter that micro controller module calculates.

3. wireless ultrasonic limnimeter according to claim 2, it is characterized in that, also comprise: for being respectively the power module that described ultrasonic probe module, ultrasonic signal processing module, micro controller module, parameter setting module, wireless receiver module and display module are powered.