RU124505U1 - DATA COLLECTION AND TRANSMISSION UNIT - Google Patents

Abstract

1. A data acquisition and transmission device containing a real-time clock and non-volatile storage device, characterized in that it also includes a microcontroller with support for the programmer interface, USB interface, RS-485 interface, 1-WIRE interface for working with digital sensors, and a current interface loop for working with analog sensors, device power supply battery, clock power battery, power control unit, radio mode non-volatile memory connected to the microcontroller, control unit power supply is connected to the device’s power battery, to the watch’s power battery, to the real-time clock and to the microcontroller, the real-time clock is connected to the microcontroller, the microcontroller is connected to the radio modem. 2. A data collection and transmission device according to claim 1, characterized in that the current loop interface has at least 6 inputs. A data collection and transmission device according to claims 1 and 2, characterized in that the 433 MHz LPD radio modem is used as the radio modem.

Description

The utility model relates to information-measuring equipment and can be used in automated recording systems, in particular, in environmental monitoring and environmental monitoring systems. Namely, in monitoring systems for the state of geological processes (soil temperature, landslide processes, soil water saturation, and direct deformation of the oil pipeline) along oil and gas pipelines, especially in severe climatic conditions.

The use of the claimed device is advisable in cases:

lack of constant power supply at points of control of geological processes;

lack of cable communications for data transfer from control points to the place of reception;

application in severe climatic conditions at the locations of control points;

lack of necessary protection of control points.

A device for collecting and transmitting data is known, which contains a microcontroller that collects, processes, and transmits measurement information, a real-time clock, and non-volatile memory (see Utility Model Patent No. 589861 of June 5, 2006).

This device is the closest in its technical solution to the proposed utility model and adopted as a prototype.

Signs of an analogue, which coincides with the essential features of the claimed utility model, are a real-time clock, non-volatile storage device.

Reasons that prevent obtaining a technical result, which is provided by a useful model, are:

lack of constant power supply at points of control of geological processes;

lack of cable communications for data transfer from control points to the place of reception.

The technical problem, which is solved by the use of the inventive device, is the guaranteed collection, storage and transmission of measurement information.

The technical result that can be obtained by implementing this utility model is the collection, storage and transmission of measurement information in extreme conditions.

This is achieved by the fact that the device includes power sources for the device and the real-time clock, a power control unit, a radio modem, and the microcontroller is configured to support the programmer interface, USB interface, RS-485 interface, current loop interface, 1-WIRE interface.

The set of essential features characterizing the utility model ensuring the receipt of the specified technical result in all cases to which the requested amount of legal protection applies and are in causal connection with the specified result of the data collection and transmission unit includes a real-time clock and non-volatile storage device, an additional microcontroller is included with support function for the programmer interface, USB interface, RS-485 interface, 1-WIRE interface for working with digital ovymi sensors, current loop interface for the analog sensors, the battery device, the battery hours, the power control unit, a radio modem; non-volatile storage device is connected to the microcontroller, the power control unit is connected to the device’s power battery, to the watch’s battery, to the real-time clock and to the microcontroller, the real-time clock is connected to the microcontroller, the microcontroller is connected to the radio modem.

The current loop interface has at least 6 inputs.

As a radio modem, an 433 MHz LPD radio modem is used.

The utility model is illustrated in the drawing.

The drawing shows a block diagram of a device where indicated:

1 - microcontroller;

2 - non-volatile storage device;

3 - radio modem;

4 - real time clock;

5 - power management unit;

6 - watch battery

7 - battery power device;

8 - current loop interface;

9 - 1-WIRE interface;

10 - programmer interface;

11 - USB interface;

12 - RS-485 interface.

The device operates as follows.

Data from digital and analog sensors through the current loop 8 interface and 1-WIRE 9 interface, respectively, are sent to microcontroller 1, where they are linked to the real-time clock time scale 4. Data associated with the real-time clock is sent to non-volatile memory 2, where they can be stored until guaranteed delivery to the place of reception.

The transmission of measured data is carried out using a radio modem 3 over the air.

The functioning of the device is provided by microcontroller 1 and a real-time clock 2. In the intervals between measurements, the device is in an economical mode with ultra-low power consumption from batteries (microwatts). The process of measuring and transmitting data takes several seconds. A special mode of operation, consisting in the fact that measurements and data transfer occur at intervals from minutes to days and months depending on the tasks to be performed, is set via the programmer interface 10.

The device is pre-configured for periodic measurement with an adjustable response period (the main parameters of the device are quickly configured via a special cable (real-time clock 4, communication time, communication period, number and type of sensors, network address, operating mode), periodic synchronization of the real-time clock 4 included in the device and the reception center hours is carried out. Xia and can range from one measurement per hour to once a day or less.

If at the next power-up for some reason the data were not transmitted to the receiving center, they are stored in non-volatile memory 2, which allows you to store information up to several tens of thousands of measurements. Data will be transmitted regardless of the number of accumulated measurements at the first successful connection to the receiving point. Upon receipt of confirmation from the addressee about the reception of all data, the latter are erased from the non-volatile storage device 2. An interactive exchange of information with the receiving point is carried out by means of a radio modem 3 via a radio channel. In this case, the transmission range can reach 10-12 kilometers (in the presence of appropriate antennas and line of sight).

As batteries 6 and 7, lithium cells with a voltage of 3.6 V high capacity (27 A / h), low self-discharge current (storage period 10 years), a wide range of operating temperatures (-50- + 125 degrees) are used.

Using the power control unit 5 provides a wide range of voltages of the battery 6 and 7. The minimum voltage for the device is 6.5 V, maximum 30 V. This is achieved by using DC-DC type converters, which are a high-voltage DC transformer ( up to 90%) efficiency. By increasing the battery voltage by adding additional lithium cells, the total current consumption is reduced. By changing the number of batteries, you can achieve the necessary duration of the device without changing the batteries.

In microcontroller 1, the device diagnostic mode is programmed. This mode provides a check of the serviceability of the communication channel, an assessment of the residual charge of the batteries 6 and 7, the temperature inside the locations of the monitoring tools.

The design of the device employs semiconductor integrated circuits that are not subject to wear and tear of performance during operation in rated operating conditions. In addition, the device does not contain moving parts and elements that work with large heat.

Communication and data transfer is carried out through various communication channels, including RS-485 and a radio channel.

Typical device consumption, including 4 hours:

in standby mode - no more than 15 μW;

in measurement mode 1.2 W;

in measurement mode with data transfer 2.2 W;

Measurement and data transmission time with time synchronization 15 ... 20 sec;

The estimated daily discharge of batteries 6 and 7 is 0.015 A / h.

Estimated battery life 6 and 7 to a charge level of 15% - 800 days.

The maximum communication range through the radio modem 3 is up to 3 km.

Maximum power consumption - 3 watts.

The device is industrially applicable. As components, standard components available on the market can be used, for example, non-volatile random access memory (EEPROM) chips with the AT45 Series DataFlash interface with a capacity of 8-16 MB (8-pin SOIC), Spectrum-433 radio modems operating in the radio frequency range 433 MHz, lithium batteries LIRDD-HTS, Engineered Power LP. The small size and design of the device is optimized for placement in pipes of small diameter (wells with a minimum diameter of 50 mm). The container with the placed device and batteries 6 and 7 has a diameter of 35 mm and a length of not more than 1000 mm. Thus, there is no need for the construction of special, incl. capital facilities for the placement of measuring equipment.

Placing the device in pipes below ground level allows the device to be used at extremely low temperatures (-60 degrees and below).

The application of the proposed utility model provides guaranteed collection, storage and transmission of measurement information in the absence of a constant power supply at the monitoring points of the geological processes of cable communications for data transfer from monitoring points to the place of reception.

Claims (3)

1. A data acquisition and transmission device containing a real-time clock and non-volatile storage device, characterized in that it also includes a microcontroller with support for the programmer interface, USB interface, RS-485 interface, 1-WIRE interface for working with digital sensors, and a current interface loop for working with analog sensors, device power supply battery, clock power battery, power control unit, radio mode non-volatile memory connected to the microcontroller, control unit power supply is connected to the device’s power battery, to the watch’s power battery, to the real-time clock and to the microcontroller, the real-time clock is connected to the microcontroller, the microcontroller is connected to the radio modem. 2. The device for collecting and transmitting data according to claim 1, characterized in that the current loop interface has at least 6 inputs. 3. A device for collecting and transmitting data according to claims 1 and 2, characterized in that a 433 MHz LPD radio modem is used as a radio modem.

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