TH8023B - A system for transmitting radio signals on liquid level display data. And for converting the received data into volumetric data - Google Patents

Abstract

A system for transmitting radio signals about liquid level data and for converting the received data into volumetric data. It consists of a transmitter that consists of an important part, the cell that is the power source. The first path is transmitted intermittently with electrical power. from such sources to convert information about liquid levels into corresponding electrical signals. The second path is transmitted intermittently with the electrical power from that source to convert the received signal into the corresponding frequency signal. and the way for modulation are transmitted intermittently with electrical power from such sources. To transmit the received frequency signal on the carrier wave through the antenna. and the receiver that consists of the important part is The first method for demodulating the frequency signal received through the antenna. Second way to save data required for pre-conversion. to convert the obtained liquid level display data. It is the data showing the volume of the liquid. and a pointer for showing information about the volume

Claims (9)

1. A system for transmitting radio signals of liquid level data and for converting received data into volumetric data. Which consists of Transmitter containing Cells that are power sources The first path is intermittently transmitted by electrical power. From the aforementioned sources To convert the information about the liquid level into the corresponding electrical signal. The second path is transmitted intermittently with power from the source to convert the received signal to the corresponding frequency signal. Pathways for modulation Are transmitted intermittently with electrical power from the said source To transmit the received frequency signal on a carrier through an antenna Computer Which would normally be kept in a ready state Timing path For giving periodic stimulation signals to the computer To keep it in the stimulated state in the preset intervals and the fluid level recording pathway. The last one that will be input into the computer in such a way that When the computer is activated, that first path is triggered to provide an electrical signal to represent the last level of data that was input into the computer for comparing the two data. Where the transmission range will be chosen for longer In case the previous liquid level is higher than the last level And shorter if the last liquid level is lower than the last level And after the submission ends The last level indicator is deleted and the new level indicator is recorded in that recording path, and the transmitter containing the critical part is the first route for the frequency signal demodulation received through the Via antenna A second way to capture the information needed for pre-conversion. To convert the received liquid level data into liquid volume display data Indicator pointers that include volume information. And where that recording path is used to adjust the counter numbers. When it was detected that the liquid level did not rise By comparing the two said liquid level data Until the set number is reduced one by one. When the computer is activated Until finally the number 0, and then the liquid level signal is sent first. 2. System according to claim 1, where such a transmitter It also consists of a voltage regulating pathway that is powered by a power source at a rated voltage to act as a power source. And a means for detecting drop in cell pressure below a predetermined pressure To output an electrical signal and which is converted by the aforementioned second method. Transmitted by such modulation method so that the receiver may convert the received signal to be displayed as an alarm. 3. System according to claim 1, where one such method of the signal generator is a rotary potentiometer with a shaft connected to the tape reel assembly. Float type (float-tape-drum assembly) and resistors. Which was arranged in such a way that When the shaft is rotated as the fluid level changes The rated pressure is transmitted periodically from the power source, the fluid level changes. The rated voltage that is delivered at intervals from the power source varies accordingly. Which will be used as an electrical signal 4. System according to claim 1, where the receiver also contains a microcomputer Is placed between the first such path and the pointer. And is connected in series The path for recording the highest liquid level And a path for recording the lowest liquid level respectively Is advance and is respectively connected to the microcomputer in such a way that When the data shows the received liquid level has reached the highest or lowest level, each signal is assigned to an indicator. 5. System according to claim 4, where such microcomputers are used to provide alarms. When the liquid level signal was not received for the specified time 6. System according to claim 5, where the preset period is set to be rather long. For cases where the liquid level does not increase and is relatively short For in case of increased liquid level To have a new shut-off valve for liquid delivery In addition to providing a warning 7. System according to claim 5, where the transmitter microcomputer is used to adjust the counter number when the liquid supply monitoring is terminated. By comparing the last recorded liquid level data recorded with the latest liquid level indicator. And with the previous double-level fluid-level data recorded to transmit the corresponding numbers of signals about the subsequent liquid level. To avoid false alarms that will be set by the receiver's microcomputer. 8. System according to claim 1, where the transmitter is housed in a hermetically sealed housing. The housing is installed in the check compartment of the fuel tank. And conductors for connecting the transmitter to the antenna Will protrude outside the said housing In such a way that the antennas may be positioned far from the inspection hole. 9. System according to claim 8, where such housing has a base plate to support the transmitter in place. And the cells can be detached on it. Hollow barrel with detachable flange And are held together in a hermetically sealed way to prevent gas leaks Which is sheathed off by an outer casing with a base plate and a hollow cylinder with flange. To be held together as a removable The outer baseplate is easily held in place in the inspection hatch for cell replacement.