CN208314768U - A kind of serial communication circuit and thermohaline deep investigation system - Google Patents

A kind of serial communication circuit and thermohaline deep investigation system Download PDF

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Publication number
CN208314768U
CN208314768U CN201820660681.8U CN201820660681U CN208314768U CN 208314768 U CN208314768 U CN 208314768U CN 201820660681 U CN201820660681 U CN 201820660681U CN 208314768 U CN208314768 U CN 208314768U
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China
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control
unit
circuit
analog multiplexer
serial communication
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CN201820660681.8U
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祝朝卿
占文庆
何哲
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Zhejiang Hai Na Science And Technology Co Ltd
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Zhejiang Hai Na Science And Technology Co Ltd
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Abstract

The utility model embodiment provides a kind of serial communication circuit and thermohaline deep investigation system, wherein serial communication circuit includes the first serial communication branch and the second serial communication branch, when the first serial communication branch and the second serial communication branch do not receive data, it is both at data receiving state；When the either side in both the first serial communication branch and the second serial communication branch receives data, first judge whether other side is in data and sends state, if other side is not in data and sends state, data are switched to by data receiving state and send state, to send data to other side；If other side is in data and sends state, terminate to switch to data transmission state by data receiving state again after data are sent in other side.By above-mentioned Communication Control, serial communication circuit in the utility model embodiment, in the case where not adding RS-485 repeater, communication distance can reach 3000 meters of transmission range between two-shipper.

Description

A kind of serial communication circuit and thermohaline deep investigation system
Technical field
The present invention relates to technical field of information transmission more particularly to a kind of serial communication circuit and thermohaline deep investigation systems.
Background technique
For current RS-485 serial communication mode, the theoretical longest distance of dual-machine communication is only capable of reaching 1200 meters long. In the case where longer communication distance, also there is special requirement to the transfer wire of double inter-machine communications, it is desirable that transfer wire is required It is twisted pair, and the line footpath of conducting wire can not be too thin.When the conducting wire of transmission is non-twisted pair or when compared with thin wire, communication transfer away from From be only capable of reaching hundreds of meters it is remote with a distance from.
Currently, when communication distance in RS-485 dual-machine communication is close to 1000 meters or so, in most communication process just It will appear miscommunication, need to increase a repeater among communication wire to improve communication distance.In not installing additional When device, communication then can not be more than 1200 meters of communication distance.
However, a kind of serial communication circuit can overcome drawbacks described above currently not yet.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind Serial communication circuit and thermohaline deep investigation system, the scheme for stating problem are as follows:
The embodiment of the invention provides a kind of serial communication circuits, comprising: the first serial communication branch and second serially leads to Branch is interrogated, and wire communication connects between the first serial communication branch and the second serial communication branch；
When the first serial communication branch and the second serial communication branch do not receive data, both locate In data receiving state；
When the either side in both the first serial communication branch and the second serial communication branch receives number According to when, first judge other side whether be in data send state, if other side be not in data send state, by data receiver shape State switches to data and sends state, to send data to other side；If other side is in data and sends state, terminate to count in other side State is sent according to data are switched to by data receiving state again after transmission；
The first serial communication branch includes: first control unit, the first RS-485 converting unit, the first analog-converted Switch unit, the second analog multiplexer unit, the first analog multiplexer control unit, the control of the second analog multiplexer are single Member, the first differential power amplifying unit, the first pulse shaping unit；
The signal input of the first RS-485 converting unit, signal input/output terminal and the first control unit/ Output end connection, for being exported after being converted into differential transmission signal from the received Transistor-Transistor Logic level signal of the first control unit；
The first analog multiplexer control unit, input terminal are connect with the control terminal of the first control unit, Its control terminal is connect with the signal input part of the first analog multiplexer unit, for according to single from first control The received control instruction of member controls the switching that the first analog multiplexer unit was received or sent state；
The second analog multiplexer control unit, input terminal are connect with the control terminal of the first control unit, Its control terminal is connect with the signal input part of the second analog multiplexer unit, for according to single from first control The received control instruction of member controls the switching that the second analog multiplexer unit was received or sent state；
The first analog multiplexer unit and the second analog multiplexer unit be in simultaneously reception state or Person is in transmission state simultaneously, and the second analog multiplexer unit and the second serial communication branch wire communication connect It connects；
When the first analog multiplexer unit and the second analog multiplexer unit are in transmission state simultaneously When, the differential transmission signal is transmitted to the first differential power amplifying unit through the first analog multiplexer unit, The second analog multiplexer list is transmitted to after the first differential power amplifying unit carries out differential power enhanced processing Member is sent to the second serial communication branch through the second analog multiplexer unit；
When the first analog multiplexer unit and the second analog multiplexer unit are in reception state simultaneously When, the second analog multiplexer unit will be transmitted to institute from the received differential data signal of the second serial communication branch The first pulse shaping unit is stated, is transmitted to first analog-converted after first pulse shaping unit carries out Shape correction Switch unit is transmitted to the first RS-485 converting unit through the first analog multiplexer unit, through the first RS- 485 converting units are transmitted to the first control unit.
The embodiment of the invention also provides a kind of thermohaline deep investigation systems, comprising: thermohaline deep probe, emitter, data Acquisition device, host computer；
The thermohaline is popped one's head in deeply, including probe underwater portion and probe above water, the probe underwater portion and described Above water of popping one's head in is flexibly connected, and the first serial communication branch built in the probe underwater portion in above-mentioned serial communication circuit Road, and it is by the first serial communication branch that the detection data in waters locating for its of the probe underwater portion acquisition is wired It is transmitted to the probe above water；
The emitter is popped one's head in deeply for emitting the thermohaline, and the probe above water that the thermohaline is popped one's head in deeply is fixed It is communicated to connect on the emitter, and with the emitter；
The data acquisition device, the second serial communication branch in built-in above-mentioned serial communication circuit, and described second Serial communication branch establishes having between the first serial communication branch through the emitter and the probe above water Line communication connection, and the detection data is transmitted to the host computer；
The host computer obtains the monitoring result in waters locating for the probe underwater portion based on the detection data.
Serial communication circuit in the embodiment of the present invention, when the first serial communication branch and the second serial communication branch not When receiving data, it is both at data receiving state；When both the first serial communication branch and the second serial communication branch In either side when receiving data, first judge whether other side is in data and sends state, if other side is not in data transmission State, then it switches to data by data receiving state and sends state, to send data to other side；If other side is in data transmission State, then it terminates to switch to data transmission state by data receiving state again after data are sent in other side.Pass through above-mentioned communication It controls, the serial communication circuit in the embodiment of the present invention, in the case where not adding RS-485 repeater, communication distance between two-shipper 3000 meters of transmission range can be reached.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the schematic block circuit diagram of a specific example of serial communication circuit in the embodiment of the present invention 1；
Fig. 2 is the schematic block circuit diagram of a specific example of the first serial communication branch in the embodiment of the present invention 1；
Fig. 3 is the schematic block circuit diagram of a specific example of the second serial communication branch in the embodiment of the present invention 1；
Fig. 4 is a specific example of the first serial communication branch and the second serial communication branch in the embodiment of the present invention 1 Communication connection functional block diagram；
Fig. 5 is the second analog multiplexer unit in the first serial communication branch with the in the second serial communication branch The circuit connection diagram of four analog multiplexer units；
Fig. 6 to Fig. 8 is that the data signal transmission in the embodiment of the present invention 1 in bidirectional linked list communication process under each state is logical The schematic diagram in road；
Fig. 9 is the structural schematic diagram of a specific example of thermohaline deep investigation system in the embodiment of the present invention 2；
Figure 10 is thermohaline probe working state schematic representation deeply in the embodiment of the present invention 2；
Figure 11 is the schematic block circuit diagram of a specific example of probe underwater portion in the embodiment of the present invention 2；
Figure 12 is the schematic block circuit diagram of a specific example of upper electric control module in the embodiment of the present invention 2；
Figure 13 is the structural schematic diagram of a specific example of probe underwater portion in the embodiment of the present invention 2；
Figure 14 is the installation signal of a specific example of the sensor in probe head shell in the embodiment of the present invention 2 Figure；
Figure 15 is the structural schematic diagram of a specific example of probe underwater portion in the embodiment of the present invention 2；
Figure 16 is that probe underwater portion and one after above water flexible connection of popping one's head in are specific real in the embodiment of the present invention 2 The structural schematic diagram of example；
Figure 17 is the structural schematic diagram of a specific example of emitter in the embodiment of the present invention 2；
Figure 18 is the schematic block circuit diagram of a specific example of data acquisition device in the embodiment of the present invention 2；
Figure 19 is the circuit theory frame of a specific example of probe installation condition detection module in the embodiment of the present invention 2 Figure；
Figure 20 is the schematic block circuit diagram of a specific example of the upper electric control module of probe in the embodiment of the present invention 2；
Figure 21 is the schematic block circuit diagram of a specific example of serial communication conversion circuit in the embodiment of the present invention 2.
Appended drawing reference
1- thermohaline is popped one's head in deeply；2- emitter；3- host computer；4- data acquisition device；11- probe underwater portion；12- is visited Head above water；13- bolt；21- emits terminal contacts；Draw socket outside 22-；23- bracket；111- probe head shell；112- electricity Gas control section shell；113- circuit board；114- connection shell；115- empennage；116- pod；The small spool of 117-；121- outer cylinder； The big spool of 122-；123- probe terminal contacts；The first mounting hole of 1151-；The second mounting hole of 1211-；1212- dismounts hole.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.
Embodiment 1
The embodiment of the invention provides a kind of serial communication circuits, as shown in Figure 1, comprising: the first serial communication branch and Second serial communication branch, and wire communication connects between the first serial communication branch and the second serial communication branch；When the first string When row communication branch and the second serial communication branch do not receive data, it is both at data receiving state；When the first string When either side in row communication both branch and the second serial communication branch receives data, first judge whether other side is in several According to send state, if other side be not in data send state, by data receiving state switch to data send state, with to Other side sends data；If other side is in data and sends state, terminate after data are sent in other side again by data receiving state It switches to data and sends state.
In, the first serial communication branch and the second serial communication branch can belong to two communication apparatus, thus Set up dual-machine communication connection.When two-shipper is in reception state, the serial communication branch at both ends is in data receiver shape State；When a single machine in two-shipper, which is in, sends data, the serial communication branch in the single machine switches to data and sends state, After sending end of data, and data receiving state can be switched back into；Another single machine is in data in other side's single machine and sends state When, other side's single machine should be waited to terminate after sending data, then switch to the state that the machine sends data.When dual-machine communication, communication association View can use the communications protocol of response formula.The selection of serial communication circuit communication baud rate, the type with communication connection conducting wire Correlation, when communication connection conducting wire use twin-core fine enamelled wire when, since the influence of conducting wire line capacitance is very big, the decaying of signal and Deformation is very serious, and the baud rate of communication need to select lower baud rate.When communication connection conducting wire is using thicker twisted pair, lead The influence of the line capacitance of line is smaller, and the decaying and deformation of signal are relatively not bery serious, and may be selected for communication baud rate is higher Baud rate.
Serial communication circuit in the present embodiment, when the first serial communication branch and the second serial communication branch do not receive When to data, it is both at data receiving state；When in both the first serial communication branch and the second serial communication branch When either side receives data, first judge whether other side is in data and sends state, if other side is not in data and sends state, Then it switches to data by data receiving state and sends state, to send data to other side；If other side is in data and sends state, Then it terminates to switch to data transmission state by data receiving state again after data are sent in other side.By above-mentioned Communication Control, Serial communication circuit in the embodiment of the present invention, in the case where not adding RS-485 repeater, communication distance can between two-shipper Reach 3000 meters of transmission range.
Optionally, as shown in Fig. 2, the serial communication circuit of the embodiment of the present invention, the first serial communication branch includes: first Control unit, the first RS-485 converting unit, the first analog multiplexer unit, the second analog multiplexer unit, the first mould Quasi- change-over switch control unit, the second analog multiplexer control unit, the first differential power amplifying unit, the first shaping pulse Unit；The signal input/output terminal of first RS-485 converting unit, signal input/output terminal and first control unit connects, For being exported after being converted into differential transmission signal from the received Transistor-Transistor Logic level signal of first control unit；First analog-converted is opened Close control unit, the control terminal connection of input terminal and first control unit, control terminal, with the first analog multiplexer unit Signal input part connection, for controlling the first analog multiplexer unit according to from the received control instruction of first control unit Received or sent the switching of state；Second analog multiplexer control unit, input terminal and first control unit Control terminal connection, control terminal are connect with the signal input part of the second analog multiplexer unit, for controlling according to from first The received control instruction of unit controls the switching that the second analog multiplexer unit was received or sent state；First simulation Switch elements and the second analog multiplexer unit are in reception state simultaneously or are in transmission state, and second simultaneously Analog multiplexer unit is connect with the second serial communication branch wire communication；When the first analog multiplexer unit and the second mould When quasi- switch elements are in transmission state simultaneously, differential transmission signal is transmitted to first through the first analog multiplexer unit Differential power amplifying unit is transmitted to the second simulation after the first differential power amplifying unit carries out differential power enhanced processing and turns Switch unit is changed, is sent to the second serial communication branch through the second analog multiplexer unit；When the first analog multiplexer list When member and the second analog multiplexer unit are in reception state simultaneously, the second analog multiplexer unit will be serial logical from second The news received differential data signal of branch is transmitted to the first pulse shaping unit, carries out Shape correction through the first pulse shaping unit After be transmitted to the first analog multiplexer unit, be transmitted to the first RS-485 converting unit through the first analog multiplexer unit, First control unit is transmitted to through the first RS-485 converting unit.
In, when the first serial communication branch is in data and sends state, the first differential power amplifying unit will be from the Through the second analog multiplexer after the differential transmission signal progress differential power enhanced processing of one analog multiplexer unit output Unit is sent to the second serial communication branch.By the way that Transistor-Transistor Logic level signal is converted into differential transmission signal, believe to differential transmission Number carry out differential power enhanced processing, the double signal of amplitude can be obtained, this undoubtedly increases the transmission range of signal.And work as When first serial communication branch is in data receiving state, the first pulse shaping unit believes No. L to the differential data sent It is transmitted to the first RS-485 converting unit after Shape correction, then is transmitted after being converted into Transistor-Transistor Logic level by the first RS-485 converting unit To first control unit, noise signal can be filtered out.
Optionally, as shown in figure 3, the serial communication circuit of the embodiment of the present invention, the second serial communication branch includes: second Control unit, the 2nd RS-485 converting unit, third analog multiplexer unit, the 4th analog multiplexer unit, third mould Quasi- change-over switch control unit, the 4th analog multiplexer control unit, the second differential power amplifying unit, the second shaping pulse Unit；2nd RS-485 converting unit, signal input/output terminal are connect with the signal input/output terminal of the second control unit, For being exported after being converted into differential transmission signal from the received Transistor-Transistor Logic level signal of the second control unit；Third analog-converted is opened Control unit is closed, input terminal is connect with the control terminal of the second control unit, control terminal, with third analog multiplexer unit Signal input part connection, for controlling third analog multiplexer unit according to from the received control instruction of the second control unit Received or sent the switching of state；4th analog multiplexer control unit, input terminal and the second control unit Control terminal connection, control terminal are connect with the signal input part of the 4th analog multiplexer unit, for controlling according to from second The received control instruction of unit controls the switching that the 4th analog multiplexer unit was received or sent state；Third simulation Switch elements and the 4th analog multiplexer unit are in reception state simultaneously or are in transmission state, and the 4th simultaneously Analog multiplexer unit is connect with the first serial communication branch wire communication；When third analog multiplexer unit and the 4th mould When quasi- switch elements are in transmission state simultaneously, differential transmission signal is transmitted to second through third analog multiplexer unit Differential power amplifying unit is transmitted to the 4th simulation after the second differential power amplifying unit carries out differential power enhanced processing and turns Switch unit is changed, is sent to the first serial communication branch through the 4th analog multiplexer unit；When third analog multiplexer list When member and the 4th analog multiplexer unit are in reception state simultaneously, the 4th analog multiplexer unit will be serial logical from first The news received differential data signal of branch is transmitted to the second pulse shaping unit, carries out Shape correction through the second pulse shaping unit After be transmitted to third analog multiplexer unit, be transmitted to the 2nd RS-485 converting unit through third analog multiplexer unit, The second control unit is transmitted to through the 2nd RS-485 converting unit.
The working principle of second serial communication branch is similar with the working principle of the first serial communication branch, herein no longer It repeats.
Fig. 4 is the circuit connection functional block diagram of the first serial communication branch and the second serial communication branch, and both ends are respectively Wired extra long distance serial communication branch all the way is connect with the control unit COM of one end respectively, both ends it is wired Extra long distance serial communication branch input, is separately connected the both ends of communication connection conducting wire.Communication mode serially leads to RS-485 News mode is identical, needs to establish the communications protocol of two-shipper.When two-shipper is in reception state, the serial communication branch at both ends is all In reception state.When there is a single machine to be in transmission data, serial communication branch is transferred to data automatically and sends state, works as hair After sending end of data, and auto-returned data receiving state.Another single machine is in data when other side's single machine sends data mode Reception state should wait other side's single machine to terminate after sending data when needing to send data, enter back into the hair that the machine sends data Send state.Communications protocol can use the communications protocol of response formula.
Preferably, the first analog multiplexer unit in the embodiment of the present invention, the second analog multiplexer unit, third Analog multiplexer unit, the 4th analog multiplexer unit can be the analog multiplexer unit of identical structure.
As shown in figure 5, being the second analog multiplexer unit in the first serial communication branch with the second serial communication branch The circuit connection diagram of the 4th analog multiplexer unit in road, it is seen from fig 5 that above-mentioned analog multiplexer unit It may include level translator；Analog switch is connected between external equipment and level translator, above-mentioned serial logical for determining Interrogate the data transmission channel of branch, wherein data transmission channel is used for transmission serial data；Optocoupler, be connected to analog switch and Between level translator, for carrying out Phototube Coupling to serial data.Analog switch is used for the serial data to long distance transmission Flow direction controlled, the control pin of analog switch is separately connected the output of optocoupler output, optocoupler input, analog switch End forms the control loop for having logical relation.Realize analog switch automatically according to the reiving/transmitting state of data sending terminal Control to data flow guarantees the transmitted in both directions of data.
Optionally, above-mentioned analog switch includes first port, sending port and second port, wherein in serial communication branch When road is transmission state: the data port of external equipment is connected via first port with sending port；The input terminal of optocoupler with Sending port connection, output end are connected to first node, wherein section of the first node between second port and level translator Point.Thus, analog switch can be realized the purpose that control data transmission channel is sendaisle.
Optionally, analog switch further includes third port, receiving port and the 4th port, is to receive in serial communication branch Under state: the data port of external equipment is connected via third port with receiving port；The input terminal of optocoupler is connected to second Node, output end are connect with receiving port, wherein node of the second node between level translator and the 4th port.Thus, Analog switch can be realized the purpose that control data transmission channel is receiving channel.
As shown in fig. 6, being in data for the first serial communication branch (left side) and the second serial communication branch (right side) The schematic diagram in data signal transmission channel when reception state.Under such state, the anode of optocoupler is connect with the Y7 of analog switch, is born The input terminal (INPUT) of pole and level translator connects, and the Z1 on analog switch is connected to Y7；It is connected to the transmitter at mainboard end In.Data signal transmission path indicated by arrow is signal actual transmissions channel in Fig. 4.At this time in the second serial communication branch The channel S0=S1=S2=Z1=Y7=1, Y7 is opened, and the second serial communication branch is in reception state, can receive from the The data that one serial communication branch is sent.When data are sent, bus free is then again introduced into this S0=S1=S2= The original state that the channel Z1=Y7, Y7 is opened.First serial communication branch is also at above-mentioned data receiving state.Data receiver shape State level is high level.
As shown in fig. 7, be in data transmission state, and the second serial communication branch for the first serial communication branch (left side) The schematic diagram in data signal transmission channel when (right side) is in data receiving state.Under such state, in the first serial communication branch The anode of Lu Zhong, S2=0, S1=1, S0=0, Z1=Y2, optocoupler are connect with the Y2 of analog switch, cathode and level translator Output end (OUTPUT) connects, and the Z1 on analog switch is connected to Y2；In the second serial communication branch, S2=S0=1, S1= 0, Z1=Y5, the Y5 connection of the cathode and analog switch of optocoupler, anode is connect with the input terminal (INPUT) of level translator, mould Z1 on quasi- switch is connected to Y5.The first serial communication branch sends the channel of data-signal as indicated by arrow in Fig. 7 at this time Data signal transmission channel.
As shown in figure 8, data receiving state is in for the first serial communication branch (left side), and the second serial communication branch (right side) is in the schematic diagram in data signal transmission channel when data send state.Under such state, the second serial communication branch End: S2=1, S1=1, S0=1, Z1=Y6 receive high level.First serial communication branch end: S2=1, S1=1, S0= 1, Z1=Y7.The second communication branch end can drag down the level of Z1 pin at this time, so that the channel S0=0, S1=1, S2=1, Y6 is beaten Open, data start to be sent out, from logic chart as can be seen that the channel Y6 open after, data transmission terminate before, Y0, Y1, Y2, Y3, Y4, Y6 are in turn switched on, and guarantee that data smoothly issue.After data are sent, with the level translation of Z1=1, S2=1, S0=1, Five-channel (assuming that S1=0) or the 7th channel (assuming that S1=1) are opened, and bus enters original state, prepares to connect Receive data.This completes all processes of data transmit-receive.
Embodiment 2
The embodiment of the invention also provides a kind of thermohaline deep investigation systems, comprising: thermohaline deep probe, emitter, data Acquisition device, host computer；
Thermohaline is popped one's head in deeply, including probe underwater portion and probe above water, probe underwater portion and probe above water It is flexibly connected, and the first serial communication branch built in underwater portion in above-mentioned serial communication circuit of popping one's head in, and passes through the first string Row communicates branch for the detection data wire transmission in waters locating for its of underwater portion acquisition of popping one's head in above water of popping one's head in；
Emitter is popped one's head in deeply for emitting thermohaline, and the probe above water that thermohaline is popped one's head in deeply is fixed on emitter, And it is communicated to connect with emitter；
Data acquisition device, the second serial communication branch in built-in above-mentioned serial communication circuit, and the second serial communication The wire communication that the emitted device of branch and probe above water are established between the first serial communication branch connects, and will detect number According to being transmitted to host computer；
Host computer obtains the monitoring result in waters locating for probe underwater portion based on detection data.
Fig. 9 is schematic diagram of the thermohaline deep investigation system under some concrete application scene in the present embodiment, and the thermohaline is deep Detection system, the mainly probe values such as detection temperature, depth, conductivity and salinity.Include in detection system outdoor section and Indoor section, outdoor section contain thermohaline 1, emitter 2 of probe, indoor section deeply and contain host computer 3(PC main control computer), Data acquisition device 4(application in can be made data acquisition device), connecting cable (preferably twin-core fine enamelled wire).In, temperature Salt deep investigation system can be operated by human-computer interaction interface, after the installation condition that detection thermohaline is popped one's head in deeply is normal, operation Control thermohaline probe deeply powers on.The continuous probe that thermohaline probe deeply is lauched laggard trip temperature, pressure and conductivity is launched, and will be visited The continuous data of survey is transmitted to data acquisition device, and data adopt case and the continuous data of detection is transferred in PC main control computer again. Received continuous data is calculated temperature value, depth value, conductivity value according to respective calculation formula by PC main control computer And salt angle value.Every and calculation value is shown in computer interface, and draws out respectively curve graph corresponding with depth, and will meter The storage of calculation value.The dispensing that thermohaline is popped one's head in deeply is that the probe above water that thermohaline is popped one's head in deeply is mounted on emitter and fastens, by Operator holds emitter station and operates dispensing on ship side.Bolt is pulled up, probe underwater portion is automatic from probe above water It is detached from, freely falling body falls into monitoring waters.Thermohaline deep investigation system can be with GP configuring S receiving module, so as to read in real time Latitude and longitude coordinates position the coordinate of thermohaline deep investigation system present position.
Optionally, the thermohaline deep investigation system of the embodiment of the present invention, probe underwater portion includes pressure detecting module, is used for The pressure signal of waters position locating for detection probe underwater portion；
Probe above water receives pressure signal and simultaneously exports.
Figure 10 is an application example of thermohaline probe 1 deeply in the present embodiment, in, the probe investment prison of underwater portion 11 It surveys sea area and carries out undersea detection, probe above water 11 and probe underwater portion 12 are wired by cable (such as twin-core enameled wire) Connection carries out bidirectional transfer of information.In the prior art, the decrease speed popped one's head in deeply generally according to thermohaline and time calculate depth Value, and the environment in sea area be it is protean, there are many factor for influencing decrease speed, under varying environment, decrease speed and time Corresponding relationship change constantly, this results in the depth value error being calculated larger.And in the present embodiment, by visiting Head underwater portion adds the pressure signal that pressure detecting module comes waters position locating for direct detection probe underwater portion, further according to Corresponding relationship between hydraulic pressure and depth calculates corresponding depth value.Because the corresponding relationship between hydraulic pressure and depth is more constant, It can ensure the accuracy of calculated depth value accordingly.
Optionally, as shown in figure 11, the thermohaline deep investigation system of the embodiment of the present invention, pressure detecting module include:
Pressure sensor, signal acquisition terminal is contacted with waters locating for probe underwater portion, for the underwater portion that will pop one's head in The pressure conversion in locating waters is the output of the first electric signal；
Pressure detecting and adjustment circuit are connect with the signal output end of pressure sensor, for converting the first electric signal To be used as pressure signal to export after d. c. voltage signal；
Constant-current source circuit exports constant current, provides reference voltage for pressure sensor.
In, pressure sensor can select diffusion silicon pressure sensor or piezoelectric pressure indicator, this implementation Example does not limit this.Pressure detecting and adjustment circuit can be by differential amplifier circuit, amplifying circuit, buffering adjustment circuit groups At.It can be the constant reference voltage that provides of pressure sensor, pressure sensor output that constant-current source circuit, which generates constant current, Pressure signal (voltage signal) amplify through differential amplifier circuit, through buffering adjustment circuit by pressure signal adjust in certain model Interior output is enclosed, the pressure signal of output can be made relatively sharp, stable.
It will be seen from figure 11 that the thermohaline deep investigation system of the embodiment of the present invention, probe underwater portion further includes temperature inspection Survey module and conductivity detection module；
Temperature detecting module, the temperature signal for waters position locating for detection probe underwater portion；
Conductivity detection module, the conductivity signal for waters position locating for detection probe underwater portion；
Probe above water receives temperature signal and conductivity signal and exports.
Optionally, the thermohaline deep investigation system of the embodiment of the present invention, temperature detecting module include:
Temperature sensor, signal acquisition terminal is contacted with waters locating for probe underwater portion, for the underwater portion that will pop one's head in The temperature transition in locating waters is the output of the second electric signal；
Temperature detection and adjustment circuit are connect with the signal output end of temperature sensor, for converting the second electric signal To be used as temperature signal to export after d. c. voltage signal；
And conductivity detection module includes:
Conductivity sensor, signal acquisition terminal is contacted with waters locating for probe underwater portion, for the underwater portion that will pop one's head in The conductivity in waters locating for point is converted to the output of third electric signal；
Conductivity detection and adjustment circuit, connect with the signal output end of conductivity sensor, are used for third electric signal It is exported after being converted to d. c. voltage signal as conductivity signal；
Sine wave generates and power amplifier, and the first control instruction generates the waveform of sine wave based on the received, will just The waveform of string wave is after power amplification as the AC excitation voltage of conductivity sensor.
In, temperature detection and adjustment circuit can be made of R/V conversion circuit, amplifying circuit, buffering adjustment circuit. R/V conversion circuit detects the resistance value of temperature sensor, and resistance value is converted into DC voltage value output real-time continuously, then The voltage value adjustment of output is exported in a certain range through amplifying circuit and buffering adjustment circuit.Conductivity detection and adjustment Circuit can be made of circuits such as differential amplifier circuit, bandwidth-limited circuit, rectification adjustment circuits.Sine wave generates and power amplifier electricity Road generates sine wave, then can be used as the AC excitation voltage of conductivity sensor after power amplification is handled.Conductivity sensors The signal of device output exports after differential amplifier circuit amplifies, and after bandwidth-limited circuit and rectification adjustment circuit, signal is turned It changes DC voltage into and adjusts number output in a certain range, the temperature signal of output and conductivity signal can be made more clear It is clear, stable.
It will be seen from figure 11 that the thermohaline deep investigation system of the embodiment of the present invention, underwater portion of popping one's head in further include: A/D mould Quasi- conversion module；
A/D analog conversion module, input terminal are electric with pressure detecting and adjustment circuit and/or temperature detection and adjustment respectively Road and/or conductivity detection and the output end connection of adjustment circuit, pressure signal and/or temperature signal and/or conductivity are believed Number the first control unit being transmitted in the first serial communication branch after digital quantity is converted by analog quantity；
First control unit is connect with the output end of A/D analog conversion module, will convert into the pressure signal of digital quantity And/or temperature signal and/or conductivity signal carry out packing processing after be transmitted to the second serial communication branch, it is serial logical through second News branch is transmitted to host computer；And first control unit is also used to generate the first control instruction and is sent to sine wave generation and function Electric discharge road.
In, A/D analog conversion module may include multi-channel A/D conversion circuit, respectively by temperature signal, pressure signal And the analog quantity of conductivity signal detection turns to be transmitted to first control unit after being converted into digital quantity by analog quantity；First control is single Member may include single-chip microcontroller and peripheral circuit, the master cpu as probe underwater portion function control.
It will be seen from figure 11 that the thermohaline deep investigation system of the embodiment of the present invention, probe underwater portion further includes upper automatically controlled Molding block powers on control instruction for receive distal end by the first serial communication branch, and according to powering on control instruction to temperature Salt probe deeply powers on.
As shown in figure 12, the thermohaline deep investigation system of the embodiment of the present invention, upper electric control module include: upper electric control electricity Road, rectification circuit, time-delay conversion control circuit, powers on/communicate conversion control circuit, power on/and communicates conversion and open switching circuit It closes；
Electrifying control circuit is connected according to control instruction control switch circuit is powered on；
Switching circuit, input terminal connect the output end of the power supply set in thermohaline probe deeply, and output end connects rectified current The input terminal on road when switching circuit is connected, exports after the output end rectification of the rectified circuit of the output voltage of power supply；
Power on/communicate change-over switch, the output end of the power supply set in first input end connection thermohaline probe deeply, second Input terminal connects the output end for powering on/communicating conversion control circuit, and the input terminal and delay for powering on/communicating conversion control circuit turn Change the control signal output connection of control circuit；
Time-delay conversion control circuit exports control instruction after being delayed to preset duration, through its control signal output, Control power on/communicate conversion control circuit, will power on/communicate change-over switch and be transferred to communication state.
After powering on, delay communicating circuit by control power on/communicating conversion control circuit will power on/communicate change-over switch by Upper electric connecting terminal is transformed into communication connection end, is at serial comm state, can reduce energy consumption, and is able to maintain and outside Communication connection.
As shown in figure 13, the thermohaline deep investigation system of the embodiment of the present invention, underwater portion of popping one's head in further include: outside probe head Shell 111, electrical control section shell 112, circuit board 113, connection shell 114, multiple empennages 115, pod 116, small spool 117；
Pressure sensor and/or temperature sensor and/or conductivity sensor pass through the bracket in probe head shell 111 It connects and fixes inside probe head shell 111, and pressure sensor and/or temperature sensor and/or conductivity sensor Signal acquisition terminal is leant out by the opening of 111 corresponding position of probe head shell；
Circuit board 113, be integrated with thereon pressure detecting and adjustment circuit and constant-current source circuit, and/or temperature detection and Adjustment circuit, and/or conductivity detection and adjustment circuit and sine wave generation and power amplifier, and/or A/D analog-converted mould Block, the first serial communication branch；
Electrical control section shell, front end connect with probe head shell, and its rear end connects with shell phase is connect, and circuit board is close Envelope waterproof is secured within portion；
Multiple empennages are uniformly distributed and are fixed on connecting pin outer surface；
Pod is ring structure, is fixed on the rear end of multiple empennages；
Small spool is fixed on electrical control section shell or connection shell or pod, is wound with twin-core enamel-cover thereon Line, and one end of twin-core enameled wire and circuit board electrical connection.
In, as shown in figure 14, pressure sensor, temperature sensor, conductivity sensor pass through probe head shell Probe head interior of shell, and the signal of pressure sensor, temperature sensor, conductivity sensor are fixed in interior bracket clamping Collection terminal is leant out by the opening of probe head shell corresponding position, can be come into full contact with monitoring water environment, it is ensured that adopt It is accurate to collect signal.By pressure detecting and adjustment circuit and constant-current source circuit, temperature detection and adjustment circuit, conductivity detection and Adjustment circuit and sine wave generate and power amplifier, A/D analog conversion module, the first serial communication branch are integrated in circuit On, thermohaline probe internal structure deeply can be made more compact, its volume is reduced, reduce the influence of buoyancy, thermohaline can be made to visit deeply Head is faster in investment water.And probe underwater portion investment monitoring sea area, during decline, empennage and pod are made jointly With can be good at control probe underwater portion verticality and decrease speed in water.Coiling enameled wire on small spool is used The unwrapping wire during probe underwater portion declines in water.
As shown in figure 16, the thermohaline deep investigation system of the embodiment of the present invention, probe above water includes outer cylinder 121, big Spool 122 and probe terminal contacts 123；
Outer cylinder, for that will pop one's head in, underwater portion is movably connected on inside it；
Big spool is built in outer cylinder bottom, and the other end for being wound in the twin-core enameled wire of small spool is fixed on big spool Tail portion, and be wound on big spool；
Probe terminal contacts, are fixed on the tail portion of big spool, and be electrically connected with the other end of twin-core enameled wire.
In, probe above water can be connect with emitter, and probe underwater portion is thermohaline probe detection deeply Main body carries out the section detection of seawater when detection in investment water.The above water of probe is mainly made of outer cylinder and big spool. Outer cylinder is used for coiling twin-core enameled wire for loading and placing probe underwater portion, big spool, small with probe underwater portion Spool and emitter carry out wired connection, for unwrapping wire on the water.
As shown in figures 13-16, the thermohaline deep investigation system of the embodiment of the present invention, further includes bolt 13, and bolt 13 includes connecting Socket part and locking part；And:
The first mounting hole 1151 is provided on each empennage；
Second mounting hole 1211 there are two being oppositely arranged in outer cylinder, and be used cooperatively at least one second mounting hole Dismounting hole 1212；
The interconnecting piece of first mounting hole 1151 and the second mounting hole 1211 and bolt 13 matches, and dismounts hole 1212 and bolt 13 locking part matches；
The interconnecting piece of bolt 13 passes through two the second mounting holes 1211 and the first mounting hole of any one empennage 1151, the locking part of bolt 13 is clamped into dismounting hole 1212, and above water of popping one's head in is movably connected on the outer of probe underwater portion In cylinder.
Figure 16 is pop one's head in underwater portion and schematic diagram of the above water after bolt is flexibly connected of popping one's head in, and pulls up bolt, visits Head underwater portion is automatically disengaged from probe above water, and freely falling body falls into monitoring waters, and it is convenient to operate.
As shown in figure 17, the thermohaline deep investigation system of the embodiment of the present invention, emitter includes: transmitting terminal contacts 21, outer Draw socket 22 and bracket 23；
Emit terminal contacts electrical connection corresponding with the probe terminal contacts that thermohaline is popped one's head in deeply；
Draw socket outside, is electrically connected with transmitting terminal contacts and data acquisition device；
Bracket, the probe above water popped one's head in deeply for installing fixed thermohaline.
In, emitter can be handheld launch rifle, configuration there are three contact, three contacts respectively with cable A piece lead connection, another end of cable is connect with data acquisition device, to set up emitter and data acquisition device Between communication connection, while above-water probe terminal contacts that three contacts and thermohaline are popped one's head in deeply visit deeply for transferring thermohaline The detection data of head.
As shown in figure 18, the thermohaline deep investigation system of the embodiment of the present invention, data acquisition device further include: probe installation shape Electric control module on state detection module, probe；
The second control unit in second serial communication branch, it is upper according to what is received before probe underwater portion is launched Position machine issue installation condition detection instruction, control probe installation condition detection module by the second serial communication branch establish with Communication connection between thermohaline probe deeply, the installation and connection status pop one's head in deeply to thermohaline detect, and pop one's head in based on the received Whether in place the installation testing result signal that installation condition detection module is fed back to judges installation that thermohaline is popped one's head in deeply, and is judging Power on operation instruction is issued after being installed in place；
Electric control module on probe, after receiving power on operation instruction, control thermohaline probe deeply is powered on.
In, after data acquisition device powers on and after being connected to upper computer detection probe status command, the second control unit Control probe installation condition detection module detection probe lead connection status, and will probe state-detection result report it is upper Machine.When detecting probe installation and normal connection status, the instruction that host computer is powered on to probe just can be performed.On receiving After the instruction that position machine is powered on to probe, the upper electric control module of the second control unit operation probe is powered on to thermohaline probe deeply.Using In, state instruction circuit for lamp can be added, and show LED light according to display pattern is powered on.When probe is launched and is counted When according to detection, the real-time continuous detection data for receiving probe transmission of data acquisition device carries out received data at packing Reason forwards the data to host computer by serial communication conversion circuit, and shows LED light according to communication mode.GPS receiver Data by serial communication conversion circuit, convert data to USB communication mode and be transmitted to host computer.
Optionally, the thermohaline deep investigation system of the embodiment of the present invention, is wound in the twin-core enameled wire of big spool and small spool Signal transmission for establishing between the first serial communication branch and the second serial communication branch.
As shown in figure 19, the thermohaline deep investigation system of the embodiment of the present invention, probe installation condition detection module includes: first Photoelectric isolating circuit, first switch driving circuit, the first change-over switch, differential amplifier circuit, compares the second photoelectric isolating circuit Circuit；
First photoelectric isolating circuit, input terminal are connect with the control signal output of the second control unit, output end Connect with the input terminal of first switch driving circuit, will from the received switching control instruction of the second control unit through Phototube Coupling from First switch driving circuit is transmitted to after reason；
First switch driving circuit, output end are connect with the control terminal of the first change-over switch, based on the received switching control The first change-over switch of order-driven processed switches between information reception or information transmission state；
First change-over switch is communicated to connect with twin-core enameled wire, when sending state in information, by the second control unit The state detection signal of generation is transmitted to thermohaline by twin-core enameled wire and pops one's head in deeply, when being in information re-ception state, by double Core enameled wire receives thermohaline probe deeply and receives the consequential signal fed back to after state detection signal；
First differential amplifier circuit, input terminal are connect with the output end of the first change-over switch, and the first change-over switch is defeated Consequential signal out exports after enhanced processing；
Comparison circuit, first input end are connect with the output end of the first differential amplifier circuit, the second input terminal and The control signal output of two control units is connected to obtain state detection signal, and consequential signal and state detection signal are through comparing The signal that circuit exports more afterwards is to install testing result signal；
The output end of second photoelectric isolating circuit, input terminal and comparison circuit connects, and output end and the second control are single The signal input part connection of member, for received installation testing result signal to be transmitted to the second control after Phototube Coupling is handled Unit.
In, the second control unit controls conversion control circuit by photoelectric isolating circuit, through switch driving circuit control Change-over switch processed passes through amplification by probe connecting line access differential amplifier circuit and by test signal, differentiates electricity using comparing Road differentiates output, and the second control unit is sent into after Phototube Coupling and is differentiated.
As shown in figure 20, the thermohaline deep investigation system of the embodiment of the present invention, electric control module includes: third photoelectricity on probe Isolation circuit, the 4th photoelectric isolating circuit, the first gate control circuit, the second gate control circuit, second switch driving circuit, Second change-over switch；
Third photoelectric isolating circuit, input terminal are connect with the control signal output of the second control unit, output end Connect with the input terminal of the first gate control circuit, will from the received power on operation instruction of the second control unit through Phototube Coupling from The first gate control circuit is transmitted to after reason；
4th photoelectric isolating circuit, input terminal are connect with the control signal output of the second control unit, output end Connect with the input terminal of the second gate control circuit, will from the received power on operation instruction of the second control unit through Phototube Coupling from The second gate control circuit is transmitted to after reason；
The output end of the output end of first gate control circuit and the second gate control circuit drives with second switch respectively The first input end of circuit and the connection of the second input terminal, the control of the output end of second switch driving circuit and the second change-over switch End connection；
When first gate control circuit is in strobe state, the second gate control circuit is in non-gated state, at this time on Electrically operated instruction is transmitted to second switch driving circuit through the first gate control circuit；When the first gate control circuit is in non-choosing When logical state, the second gate control circuit is in strobe state, and power on operation instruction at this time is transmitted through the second gate control circuit To second switch driving circuit；
Second switch driving circuit controls the second change-over switch when its first input end receives power on operation instruction It issues the conduct of the first power on operation status command and powers on control instruction, when its second input terminal receives power on operation instruction, It controls sending the second power on operation instruction conduct of the second change-over switch and powers on control instruction；
The output end of second change-over switch is electrically connected, upward electric control module with the upper electric control module that thermohaline is popped one's head in deeply Output powers on control instruction, carries out electric control on double loop power supply to thermohaline probe deeply.
In, data are shown by display if necessary or light indicator light etc., double loop power supply is just needed at this time It powers.Because for example a control panel for having single-chip microcontroller is controlled if being attached to liquid crystal display or other peripheral components Making sheet needs to power using+5V, and peripheral components are other than needs+5V (VCC) power supply, it is also necessary in addition positive or negative all the way Regulated power supply power supply, for example provide driving with -10V a power supply (VEE) for liquid crystal display and display contrast adjusting voltage.This In the case of kind, the electric sequence of power supply just becomes extremely important.It must assure that+5V power supply is first connected when opening electricity, connect again later- 10V power supply must first break -10V power supply when powered-down, break+5V power supply again later, otherwise can make circuit+5V logic power When being not present or not completely setting up, driving power VEE is fed in logic circuit, and the pressure-resistant range beyond certain elements causes Component wear.In the present embodiment, by above-mentioned two-way control mode, the electric sequence control of power supply may be implemented.
As seen from Figure 20, the thermohaline deep investigation system of the embodiment of the present invention, electric control module on probe further include: Five photoelectric isolating circuits, communication control circuit, third switch driving circuit, third change-over switch；
5th photoelectric isolating circuit, input terminal are connect with the control signal output of the second control unit, output end It is connect with the input terminal of communication control circuit, it will be from the received Communication Control signal of the second control unit after Phototube Coupling is handled It is transmitted to communication control circuit；Communication Control signal postpones to issue after powering on control instruction and issuing；
Communication control circuit, output end are connect with the control terminal of third switch driving circuit, third switch driving circuit Output end connect with the control terminal of third change-over switch, communication control circuit after receiving Communication Control signal, control third Switch driving circuit driving third change-over switch is transferred to communication connection state；
Third change-over switch is electrically connected with the second communication branch, after being transferred to communication connection status, control the second communication branch Road is in information re-ception state, to receive the pressure signal and/or temperature signal and/or conductivity letter that the first communication branch is sent Number.
In, serial communication conversion circuit can also be added, mainly by photoelectric isolating circuit, RS-485 conversion circuit, Buffer the circuits such as input circuit composition.Working principle is that the transmission data that thermohaline is popped one's head in deeply are sent into buffering input circuit, buffering The data of output input RS-485 conversion circuit, read after being converted to TTL digital signal through photoelectric isolating circuit feeding single-chip microcontroller.
As shown in figure 21, serial communication conversion circuit mainly turns RS-485 circuit by TTL, TTL turns RS-232 circuit, photoelectricity The circuits composition such as isolation circuit, control conversion circuit, tetra- turn of one RS-48 turns USB circuit, RS-232 turns USB circuit, USB circuit. Serial communication conversion circuit is that the communication of RS-485 all the way is converted to USB communication mode, and it is logical to be converted to USB for RS-232 communication all the way News mode, then two-way USB is merged into USB port all the way and is connect with host computer, simplify the interface setting of host computer.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art, Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement, Improve etc., it should be included within the scope of the claims of this application.

Claims (8)

1. a kind of serial communication circuit characterized by comprising the first serial communication branch and the second serial communication branch, and Wire communication connects between the first serial communication branch and the second serial communication branch；
When the first serial communication branch and the second serial communication branch do not receive data, it is both at number According to reception state；
When the either side in both the first serial communication branch and the second serial communication branch receives data, First judge whether other side is in data and sends state, if other side is not in data and sends state, is cut by data receiving state It shifts to data and sends state, to send data to other side；If other side is in data and sends state, terminate data hair in other side Data are switched to by data receiving state again after sending and send state；
The first serial communication branch includes: first control unit, the first RS-485 converting unit, the first analog multiplexer Unit, the second analog multiplexer unit, the first analog multiplexer control unit, the second analog multiplexer control unit, First differential power amplifying unit, the first pulse shaping unit；
The first RS-485 converting unit, the signal input/output of signal input/output terminal and the first control unit End connection, for being exported after being converted into differential transmission signal from the received Transistor-Transistor Logic level signal of the first control unit；
The first analog multiplexer control unit, input terminal are connect with the control terminal of the first control unit, control End processed is connect with the signal input part of the first analog multiplexer unit, for connecing according to from the first control unit The control instruction of receipts controls the switching that the first analog multiplexer unit was received or sent state；
The second analog multiplexer control unit, input terminal are connect with the control terminal of the first control unit, control End processed is connect with the signal input part of the second analog multiplexer unit, for connecing according to from the first control unit The control instruction of receipts controls the switching that the second analog multiplexer unit was received or sent state；
The first analog multiplexer unit and the second analog multiplexer unit are in reception state or same simultaneously When be in transmission state, and the second analog multiplexer unit is connect with the second serial communication branch wire communication；
When the first analog multiplexer unit and the second analog multiplexer unit are in transmission state simultaneously, institute It states differential transmission signal and is transmitted to the first differential power amplifying unit through the first analog multiplexer unit, through described First differential power amplifying unit is transmitted to the second analog multiplexer unit after carrying out differential power enhanced processing, through institute It states the second analog multiplexer unit and is sent to the second serial communication branch；
When the first analog multiplexer unit and the second analog multiplexer unit are in reception state simultaneously, institute Described will be transmitted to from the received differential data signal of the second serial communication branch by stating the second analog multiplexer unit One pulse shaping unit is transmitted to first analog multiplexer after first pulse shaping unit carries out Shape correction Unit is transmitted to the first RS-485 converting unit through the first analog multiplexer unit, through the first RS-485 Converting unit is transmitted to the first control unit.
2. serial communication circuit according to claim 1, which is characterized in that the second serial communication branch includes: Two control units, the 2nd RS-485 converting unit, third analog multiplexer unit, the 4th analog multiplexer unit, third Analog multiplexer control unit, the 4th analog multiplexer control unit, the second differential power amplifying unit, the second pulse are whole Shape unit；
The 2nd RS-485 converting unit, the signal input/output of signal input/output terminal and second control unit End connection, for being exported after being converted into differential transmission signal from the received Transistor-Transistor Logic level signal of second control unit；
The third analog multiplexer control unit, input terminal are connect with the control terminal of second control unit, control End processed is connect with the signal input part of the third analog multiplexer unit, for connecing according to from second control unit The control instruction of receipts controls the switching that the third analog multiplexer unit was received or sent state；
The 4th analog multiplexer control unit, input terminal are connect with the control terminal of second control unit, control End processed is connect with the signal input part of the 4th analog multiplexer unit, for connecing according to from second control unit The control instruction of receipts controls the switching that the 4th analog multiplexer unit was received or sent state；
The third analog multiplexer unit and the 4th analog multiplexer unit are in reception state or same simultaneously When be in transmission state, and the 4th analog multiplexer unit is connect with the first serial communication branch wire communication；
When the third analog multiplexer unit and the 4th analog multiplexer unit are in transmission state simultaneously, institute It states differential transmission signal and is transmitted to the second differential power amplifying unit through the third analog multiplexer unit, through described Second differential power amplifying unit is transmitted to the 4th analog multiplexer unit after carrying out differential power enhanced processing, through institute It states the 4th analog multiplexer unit and is sent to the first serial communication branch；
When the third analog multiplexer unit and the 4th analog multiplexer unit are in reception state simultaneously, institute Described will be transmitted to from the received differential data signal of the first serial communication branch by stating the 4th analog multiplexer unit Two pulse shaping units are transmitted to the third analog multiplexer after second pulse shaping unit carries out Shape correction Unit is transmitted to the 2nd RS-485 converting unit through the third analog multiplexer unit, through the 2nd RS-485 Converting unit is transmitted to second control unit.
3. a kind of thermohaline deep investigation system characterized by comprising the deep probe of thermohaline, emitter, data acquisition device, on Position machine；
The thermohaline is popped one's head in deeply, including probe underwater portion and probe above water, the probe underwater portion and the probe Above water is flexibly connected, and first in serial communication circuit described in claim 1 built in the probe underwater portion is serial Communicate branch, and by the first serial communication branch by it is described probe underwater portion acquire its locating for waters detection number According to wire transmission to the probe above water；
The emitter is popped one's head in deeply for emitting the thermohaline, and the probe above water that the thermohaline is popped one's head in deeply is fixed on institute It states on emitter, and is communicated to connect with the emitter；
The data acquisition device, the second serial communication branch in serial communication circuit described in built-in claim 2, and it is described Second serial communication branch is established between the first serial communication branch through the emitter and the probe above water Wire communication connection, and the detection data is transmitted to the host computer；
The host computer obtains the monitoring result in waters locating for the probe underwater portion based on the detection data.
4. thermohaline deep investigation system according to claim 3, which is characterized in that the probe underwater portion further includes powering on Control module, for powering on control instruction by the first serial communication branch reception distal end, and according to described automatically controlled System instruction is powered on to thermohaline probe deeply.
5. thermohaline deep investigation system according to claim 4, which is characterized in that the upper electric control module includes: to power on Control circuit, switching circuit, rectification circuit, time-delay conversion control circuit, power on/communicate conversion control circuit, power on/communicate turn Change switch；
The electrifying control circuit powers on control instruction according to and controls the switching circuit conducting；
The switching circuit, input terminal connect the output end of the power supply set in thermohaline probe deeply, and output end connects institute The input terminal of rectification circuit is stated, when the switching circuit is connected, the output voltage of the power supply is through the output of the rectification circuit It is exported after the rectification of end；
Described to power on/communicate change-over switch, first input end connects the output end of the power supply set in thermohaline probe deeply, The output end of conversion control circuit is powered on/communicated described in the connection of second input terminal, it is described to power on/communicate the defeated of conversion control circuit Enter end to connect with the control signal output of the time-delay conversion control circuit；
The time-delay conversion control circuit exports control instruction after being delayed to preset duration, through its control signal output, Powered on described in control/conversion control circuit is communicated, it powers on/communicates change-over switch by described and be transferred to communication state.
6. thermohaline deep investigation system according to claim 5, which is characterized in that the data acquisition device further include: visit Electric control module on head installation condition detection module, probe；
The second control unit in the second serial communication branch, before probe underwater portion dispensing, according to receiving The installation condition detection instruction that issues of the host computer, control the probe installation condition detection module and pass through described second and go here and there Row communication branch establishes the communication connection between thermohaline probe deeply, the installation pop one's head in deeply to the thermohaline and connection status into Row detection, and the installation testing result signal that the probe installation condition detection module is fed back to based on the received judges the temperature Whether in place the installation that salt is popped one's head in deeply, and issues power on operation instruction after judgement is installed in place；
Electric control module on the probe after receiving the power on operation instruction, controls thermohaline probe deeply and powers on.
7. thermohaline deep investigation system according to claim 6, which is characterized in that the probe installation condition detection module packet It includes: the first photoelectric isolating circuit, the second photoelectric isolating circuit, first switch driving circuit, the first change-over switch, differential amplification electricity Road, comparison circuit；
First photoelectric isolating circuit, input terminal is connect with the control signal output of second control unit, defeated Outlet is connect with the input terminal of the first switch driving circuit, will be from the received switching control instruction of second control unit The first switch driving circuit is transmitted to after Phototube Coupling is handled；
The first switch driving circuit, output end are connect with the control terminal of first change-over switch, based on the received institute The first change-over switch described in switching control order-driven is stated to switch between information reception or information transmission state；
First change-over switch is communicated to connect with twin-core enameled wire, and when sending state in information, described second is controlled The state detection signal that unit generates is transmitted to the thermohaline by the twin-core enameled wire and pops one's head in deeply, receives shape in information When state, thermohaline probe deeply is received by the twin-core enameled wire and receives the result fed back to after the state detection signal letter Number；
First differential amplifier circuit, input terminal are connect with the output end of first change-over switch, by described first turn The consequential signal for changing switch output exports after enhanced processing；
The comparison circuit, first input end are connect with the output end of first differential amplifier circuit, the second input terminal It is connect with the control signal output of second control unit to obtain the state detection signal, the consequential signal and institute State state detection signal through the comparison circuit relatively after the signal that exports be the installation testing result signal；
Second photoelectric isolating circuit, input terminal are connect with the output end of the comparison circuit, output end and described the The signal input part of two control units connects, for passing the received installation testing result signal after Phototube Coupling is handled Transport to second control unit.
8. thermohaline deep investigation system according to claim 6 or 7, which is characterized in that electric control module packet on the probe Include: third photoelectric isolating circuit, the 4th photoelectric isolating circuit, the first gate control circuit, the second gate control circuit, second open Close driving circuit, the second change-over switch；
The third photoelectric isolating circuit, input terminal is connect with the control signal output of second control unit, defeated Outlet is connect with the input terminal of first gate control circuit, will be from the received power on operation of second control unit Instruction is transmitted to first gate control circuit after Phototube Coupling is handled；
4th photoelectric isolating circuit, input terminal is connect with the control signal output of second control unit, defeated Outlet is connect with the input terminal of second gate control circuit, will be from the received power on operation of second control unit Instruction is transmitted to second gate control circuit after Phototube Coupling is handled；
The output end of the output end of first gate control circuit and second gate control circuit is respectively with described second The first input end of switch driving circuit and the connection of the second input terminal, the output end of the second switch driving circuit and described the The control terminal of two change-over switches connects；
When first gate control circuit is in strobe state, second gate control circuit is in non-gated state, this The instruction of Shi Suoshu power on operation is transmitted to the second switch driving circuit through first gate control circuit；When described first When gate control circuit is in non-gated state, second gate control circuit is in strobe state, described at this time to power on behaviour It instructs and is transmitted to the second switch driving circuit through second gate control circuit；
The second switch driving circuit, when its first input end receives power on operation instruction, control described second Change-over switch issues and powers on control instruction described in the conduct of the first power on operation status command, receives in its second input terminal described When power on operation instructs, controls and power on control instruction described in the second change-over switch sending the second power on operation instruction conduct；
The output end of second change-over switch is electrically connected with the upper electric control module that the thermohaline is popped one's head in deeply, powers on to described Control instruction is powered on described in control module output, electric control on double loop power supply is carried out to thermohaline probe deeply.
CN201820660681.8U 2018-05-04 2018-05-04 A kind of serial communication circuit and thermohaline deep investigation system Expired - Fee Related CN208314768U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108415868A (en) * 2018-05-04 2018-08-17 浙江海呐科技有限公司 A kind of serial communication circuit and thermohaline deep investigation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108415868A (en) * 2018-05-04 2018-08-17 浙江海呐科技有限公司 A kind of serial communication circuit and thermohaline deep investigation system
CN108415868B (en) * 2018-05-04 2024-05-28 浙江海呐科技有限公司 Serial communication circuit and temperature and salt depth detection system

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