CN108896107A - A kind of monobus temperature and humidity integrated sensor chip and its means of communication - Google Patents
A kind of monobus temperature and humidity integrated sensor chip and its means of communication Download PDFInfo
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- CN108896107A CN108896107A CN201810578131.6A CN201810578131A CN108896107A CN 108896107 A CN108896107 A CN 108896107A CN 201810578131 A CN201810578131 A CN 201810578131A CN 108896107 A CN108896107 A CN 108896107A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
Abstract
The present invention provides a kind of monobus temperature and humidity integrated sensor chip and its means of communication, including：Temperature sensing unit, humidity sensing unit, selector, analog-digital converter, register group, single bus interface and warning circuit；Temperature sensing unit is connect by selector with analog-digital converter with humidity sensing unit, analog-digital converter, single bus interface and warning circuit are separately connected register, single bus interface is communicated with external single bus data, it receives from external temperature and humidity conversion command, and sends temperature information, humidity information and warning message to outside.The advantages of Temperature Humidity Sensor of Single-wire data communication of the present invention can be realized the stability and reliability of long distance transmission, and the purpose of multiple spot real time monitoring, it is simple with system design, low in cost, convenient for system administration and safeguard.
Description
Technical field
The present invention relates to electronic circuit technology fields, and in particular, to a kind of monobus temperature and humidity integrated sensor chip
And its means of communication.
Background technique
The monitoring of intelligent temperature and humidity at present is also simply present in single-point detection.In warehousing management, Soil K+adsorption and medical object
Stream aspect, will realize integral monitoring temperature and humidity, using the Temperature Humidity Sensor of I2C interface, will can greatly improve system
Cost, while also reducing the transmission stability of the long range of system.
When the characteristics of temperature and humidity Integrated design, solves the interference and conversion of discrete thermo-sensitive resistor and humistor component
Between long problem.However, humistor there are the deviation of technique is big, is easy to appear the phenomenon of consistency difference, so as to cause system
The phenomenon that false alarm of software.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of monobus temperature and humidity integrated sensor chips
And its means of communication.
A kind of monobus temperature and humidity integrated sensor chip provided according to the present invention, including：Temperature sensing unit, humidity
Sensing unit, selector, analog-digital converter, register group, single bus interface and warning circuit；
The temperature sensing unit is connect by the selector with the analog-digital converter with the humidity sensing unit,
The analog-digital converter, the single bus interface and the warning circuit are separately connected the register, the single bus interface
It communicates, is received from external temperature and humidity conversion command with external single bus data, and send temperature information, humidity to outside
Information and warning message；
The register group includes：Temperature register low level, temperature register is high-order, and humidity register low level, humidity is posted
Storage is high-order, TH register, TL register, HH register, configuration register and check register.
Preferably, the single bus data communication includes：
What outside was sent by monobus to monobus temperature and humidity integrated sensor chip：Activation order, activation
Monobus temperature and humidity integrated sensor chip；DEV order identifies monobus temperature and humidity integrated sensor chip；FUNC order, it is right
Monobus temperature and humidity integrated sensor chip is inquired and is operated；And
Monobus temperature and humidity integrated sensor chip orders the Activation order, DEV order and FUNC received
Corresponding response is made in order.
Preferably, the Activation order is a lasting low level signal, the duration is greater than 220us,
Less than 1s；The monobus temperature and humidity integrated sensor chip is replied one to the Activation order received and is continued
The low level Activation response of 120us.
Preferably, the DEV order includes that the external monobus that passes through is sent to monobus temperature and humidity integrated sensor chip
's：
Read DEV order, monobus temperature and humidity integrated sensor chip believe chip after receiving Read DEV order
Breath is sent to outside；
Match DEV order, the monobus temperature and humidity integrated sensor chip chip information that receives of judgement and itself
Whether chip information matches, and returns to the activation stage if mismatching, and inquiry and operational phase are entered if matching；
Search DEV order, monobus temperature and humidity integrated sensor chip response concurrent send chip information and chip information
It is negating as a result, outside, which recognizes, returns to confirmation chip information after chip information, monobus temperature and humidity integrated sensor chip connects
After receiving, if it is confirmed that chip information is not inconsistent with chip information, then the activation stage is returned to, inquiry and operation are entered if matching
Stage；
Temp Alarm order, it is external to identify in monobus whether there is temperature alarming by sending Temp Alarm order
Monobus temperature and humidity integrated sensor chip；
Humi Alarm order, it is external to identify in monobus whether there is humidity alarm by sending Humi Alarm order
Monobus temperature and humidity integrated sensor chip；
Skip order, ignores identification information, to be directly entered inquiry and operational phase.
Preferably, the FUNC order includes that the external monobus that passes through is sent to monobus temperature and humidity integrated sensor chip
's：
Convert Temp order, monobus temperature and humidity integrated sensor chip are sent out after receiving Convert Temp order
Send temperature transition；
Convert Humi order, monobus temperature and humidity integrated sensor chip are sent out after receiving Convert Humi order
Humidity is sent to convert；
Convert Temp&Humi order, monobus temperature and humidity integrated sensor chip receive Convert Temp&
The conversion of temperature and humidity occurs after Humi order；
Copy Scratchpad order, monobus temperature and humidity integrated sensor chip receive Copy Scratchpad life
By TH register after order, the value of TL register, HH register is written in internal non-volatile storage unit；
Write Scratchpad order, monobus temperature and humidity integrated sensor chip receive Write Scratchpad
TH register, TL register, configuration register and HH register are write data into after order；
Read Scratchpad order, monobus temperature and humidity integrated sensor chip receive Read Scratchpad life
The value and check byte of transmitter register after order；
Recall Mem order, monobus temperature and humidity integrated sensor chip will be internal after receiving Recall Mem order
The data stored in non-volatile memory cells are read back in corresponding register；
Read Power Supply order, monobus temperature and humidity integrated sensor chip receive Read Power
After Supply order, powers if it is parasitism, 0 will be replied, otherwise reply 1.
Preferably, the FUNC order further includes：
Other orders, monobus temperature and humidity integrated sensor chip receive other orders and then return to the activation stage.
Preferably, transmission is posted after monobus temperature and humidity integrated sensor chip receives Read Scratchpad order
The value and check byte of storage include：
Byte0：Temperature register low level；Byte1：Temperature register is high-order；Byte2：TH register；Byte3：TL deposit
Device；Byte4：Configuration register；Byte5：Humidity register low level；Byte6：Humidity register is high-order；Byte7：HH register；
Byte8：Check register.
Preferably, the humidity sensing unit by aperture in the encapsulation of monobus temperature and humidity integrated sensor chip with
Contacting external air.
A kind of means of communication of the monobus temperature and humidity integrated sensor chip provided according to the present invention, the monobus temperature
Humidity integrated sensor chip is communicated by single bus interface with external single bus data, is received and is converted from external temperature and humidity
Order, and temperature information, humidity information and warning message are sent to outside.
Preferably, the single bus data communication includes：
What outside was sent by monobus to monobus temperature and humidity integrated sensor chip：Activation order, activation
Monobus temperature and humidity integrated sensor chip；DEV order identifies monobus temperature and humidity integrated sensor chip；FUNC order, it is right
Monobus temperature and humidity integrated sensor chip is inquired and is operated；And
Monobus temperature and humidity integrated sensor chip orders the Activation order, DEV order and FUNC received
Corresponding response is made in order.
Compared with prior art, the present invention has following beneficial effect：
The Temperature Humidity Sensor of Single-wire data communication of the present invention can be realized the stability and reliability of long distance transmission, more
The advantages of purpose of point real time monitoring, it is simple with system design, low in cost, convenient for system administration and safeguards.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the front view of monobus temperature and humidity integrated sensor chip of the present invention；
Fig. 2 is the left view of monobus temperature and humidity integrated sensor chip of the present invention；
Fig. 3 is the internal circuit schematic diagram of monobus temperature and humidity integrated sensor chip of the present invention；
Fig. 4 is the single-wire communication protocol of monobus temperature and humidity integrated sensor chip of the present invention；
Fig. 5 is the single-wire communication protocol of monobus temperature and humidity integrated sensor chip of the present invention；
Fig. 6 is the composition schematic diagram of three kinds of sequences of the invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
As shown in Figure 1 to Figure 3, a kind of monobus temperature and humidity integrated sensor chip provided by the invention, including：Temperature passes
Feel unit, humidity sensing unit, selector, analog-digital converter, register group, single bus interface and warning circuit.It removes and supplies
Electric V pin and altogether G pin, only one D pin of chip are connected with external host.Humidity sensing unit passes through opening in encapsulation
Hole and extraneous air are in contact.The radius of aperture is R.Aperture center is D with a distance from top margin.The distance of No. 3 pins of distance
For H.Two different verifying functions are provided：CRC and ECC.
Temperature sensing unit is connect by selector with analog-digital converter with humidity sensing unit, and analog-digital converter, list are total
Line interface and warning circuit are separately connected register, and single bus interface is communicated with external single bus data, received from outside
Temperature and humidity conversion command, and temperature information, humidity information and warning message are sent to outside；Register group includes：Temperature
Register low level, temperature register is high-order, humidity register low level, and humidity register is high-order, TH register, TL register, HH
Register, configuration register and check register.
Single bus data communication mode include：
What outside was sent by monobus to monobus temperature and humidity integrated sensor chip：Activation order, activation
Monobus temperature and humidity integrated sensor chip；DEV order identifies monobus temperature and humidity integrated sensor chip；FUNC order, it is right
Monobus temperature and humidity integrated sensor chip is inquired and is operated；And monobus temperature and humidity integrated sensor chip docking
Corresponding response is made in Activation order, DEV order and the FUNC order received.
Specifically, Activation order is a lasting low level signal, the duration is greater than 220us, is less than
1s；Monobus temperature and humidity integrated sensor chip replys a lasting 120us low level to the Activation order received
Activation response.
DEV order includes what outside was sent by monobus to monobus temperature and humidity integrated sensor chip：
Read DEV order (33h), monobus temperature and humidity integrated sensor chip will after receiving Read DEV order
Chip information is sent to outside；
Match DEV order (55h), monobus temperature and humidity integrated sensor chip judge the chip information received and oneself
Whether the chip information of body matches, and returns to the activation stage if mismatching, and inquiry and operational phase are entered if matching；
Search DEV order (FOh), monobus temperature and humidity integrated sensor chip response concurrent send chip information and core
It is that piece information negates as a result, outside, which recognizes, returns to confirmation chip information, monobus temperature and humidity integrated sensor after chip information
After chip receives, if it is confirmed that chip information is not inconsistent with chip information, then the activation stage is returned to, inquiry is entered if matching
And the operational phase；
Temp Alarm order (ECh), it is external to identify in monobus whether there is temperature by sending Temp Alarm order
Spend the monobus temperature and humidity integrated sensor chip of alarm；
Humi Alarm order (DCh), it is external identified in monobus by sending Humi Alarm order whether have it is wet
Spend the monobus temperature and humidity integrated sensor chip of alarm；
Skip order (CCh), ignores identification information, to be directly entered inquiry and operational phase.
FUNC order includes what outside was sent by monobus to monobus temperature and humidity integrated sensor chip：
Convert Temp order (44h), monobus temperature and humidity integrated sensor chip receive Convert Temp life
Temperature transition is sent after order；
Convert Humi order (C4h), monobus temperature and humidity integrated sensor chip receive Convert Humi life
Humidity conversion is sent after order；
Convert Temp&Humi order (8Ch), monobus temperature and humidity integrated sensor chip receive Convert
The conversion of temperature and humidity occurs after Temp&Humi order；
Copy Scratchpad order (48h), monobus temperature and humidity integrated sensor chip receive Copy
By TH register after Scratchpad order, the value of TL register, HH register is written in internal non-volatile storage unit；
Write Scratchpad order (4Eh), monobus temperature and humidity integrated sensor chip receive Write
TH register, TL register, configuration register and HH register are write data into after Scratchpad order；
Read Scratchpad order (BEh), monobus temperature and humidity integrated sensor chip receive Read
The value and check byte of transmitter register after Scratchpad order；
Recall Mem order (B8h), after monobus temperature and humidity integrated sensor chip receives Recall Mem order
The data stored in internal non-volatile storage unit are read back in corresponding register；
Read Power Supply order (B4h), monobus temperature and humidity integrated sensor chip receive Read Power
After Supply order, powers if it is parasitism, 0 will be replied, otherwise reply 1；
Other orders, monobus temperature and humidity integrated sensor chip receive other orders and then return to the activation stage.
After monobus temperature and humidity integrated sensor chip receives Read Scratchpad order, the register of transmission
Value and check byte include：
| Byte0 | Temperature register low level |
| Byte1 | Temperature register is high-order |
| Byte2 | TH register |
| Byte3 | TL register |
| Byte4 | Configuration register |
| Byte5 | Humidity register low level |
| Byte6 | Humidity register is high-order |
| Byte7 | HH register |
| Byte8 | Check register |
As shown in Figures 4 to 6, the monobus means of communication and agreement mainly include Activation Sequence, DEV
Tri- kinds of sequence compositions of Command Sequence and FUNC Command Sequence.Activation Sequence is for calling out
Awake chip or the current operation for interrupting chip, prepare corresponding subsequent DEV Command.If fruit chip is at once to external host
Active Response is sent, chip can pull down monobus, show that external host can continue to send DEV Command；It is no
Then, external host must exit current transmission sequence, wait wake up next time.Enter DEV Command Sequence it
Afterwards, external host sends the DEV order of 8 bits, and chip enters DEV response phase, provides chip information or provides temperature or wet
Spend the information of alarm.After entering FUNC Command Sequence, external host sends the FUNC order of 8 bits, can be with
Make chip that temperature transition, humidity conversion or temperature and humidity conversion occur.The time once converted is according to R1 in configuration register and R0
Value determine.As R [1:When 0] being equal to 2 ' b11, the time converted is 55.92 millisecond；When 2 ' b10, conversion time is 27.96 millis
Second；When 2 ' b01, conversion time is 13.98 milliseconds；When 2 ' b00, conversion time is 6.99 milliseconds.
The alarm of sensor chip mainly has temperature alarming mechanism and humidity alarm mechanism.When [1 FQ in configuration register:
When 0] being equal to 2 ' b00, temperature is once lower than temperature Low threshold TL than or equal to the value or temperature of temperature high threshold TH register
When the value of deposit, chip interior can be the flag set of Temp Alarm.Once when humidity is than or equal to humidity high threshold HH
The value of register, chip interior can be the flag sets of Humi Alarm.If working as FQ [1:When 0] being equal to 2 ' b01, chip needs
Conversion is more than the value of threshold register twice in succession, and corresponding flag bit can just be arranged.If working as FQ [1:When 0] being equal to 2 ' b10,
It is more than the value of threshold register that chip, which needs continuous four conversions, and corresponding flag bit can just be arranged.
The numerical value of temperature register of the present invention indicates as shown in the table.If working as FQ [1:When 0] being equal to 2 ' b11,
It is more than the value of threshold register that chip, which needs continuous six conversions, and corresponding flag bit can just be arranged.
Temperature register low level：
| Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 |
| 23 | 22 | 21 | 20 | 2-1 | 2-2 | 2-3 | 2-4 |
Temperature register is high-order：
| Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 |
| S | S | S | S | S | 26 | 25 | 24 |
The data relationship of temperature
| Temperature(℃) | Digtial Output(Binary) | Digital Output(Hex) |
| 125 | 0000 0111 1101 0000 | 0x07D0 |
| 85 | 0000 0101 0101 0000 | 0x0550 |
| 25.0625 | 0000 0001 1001 0001 | 0x0191 |
| 0 | 0000 0000 0000 0000 | 0x0000 |
| -0.5 | 1111 1111 1111 1000 | 0xFFF8 |
| -25.0625 | 1111 1110 0110 1111 | 0xFE6F |
| -55 | 1111 1100 1001 0000 | 0xFC90 |
The numerical value of humidity register of the present invention indicates as shown in the table.
Humidity register low level
| Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 |
| 23 | 22 | 21 | 20 | 2-1 | 2-2 | 2-3 | 2-4 |
Humidity register is high-order
| Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 |
| Resv | Resv | Resv | Resv | Resv | 26 | 25 | 24 |
The data relationship of humidity
Configuration register of the present invention is as shown in the table,
HP -1 expression contains humidity value.FQ is conducive to the unnecessary temperature alarming of based filtration.
On the basis of a kind of above-mentioned monobus temperature and humidity integrated sensor chip, the present invention also provides a kind of monobus temperature
The means of communication of humidity integrated sensor chip, monobus temperature and humidity integrated sensor chip are single by single bus interface and outside
Bus data communication, receive temperature and humidity conversion command from host and item host send temperature information, humidity information and
Warning message.
What outside was sent by monobus to monobus temperature and humidity integrated sensor chip：Activation order, activation
Monobus temperature and humidity integrated sensor chip；DEV order identifies monobus temperature and humidity integrated sensor chip；FUNC order, it is right
Monobus temperature and humidity integrated sensor chip is inquired and is operated；And
Monobus temperature and humidity integrated sensor chip orders the Activation order, DEV order and FUNC received
Corresponding response is made in order.
Specifically, one or being mostly connected by solid conductor with the control panel of host or host with single line Temperature Humidity Sensor
It connects, host is usually microcontroller such as C51 single-chip microcontroller, ARM chip or desktop computer.Monobus needs the Europe external pull-up resistor 4.7K
Nurse.Guarantee after powering in this way, host does not send order, the input that chip receives as high level.
Step 1, host persistently drag down the time 300us of monobus, i.e., transmission Activation Reset sequence is total to list
On line, chip receives the order of this wake-up.Activation Response response will be sent.It can be seen on monobus
Signal is dragged down to for about 120us.
Step 2, host are sent in Search DEV order to bus, and host replys the core of identification according to the signal in bus
Piece information.It is DEV_ID0, DEV_ID1, DEV_ in host memory so as to search all chips on monobus
ID2,…….DEV_IDN.The storage size of these variables is 64 bits.
Step 3, host persistently drag down the time 300us of monobus again, i.e., transmission Activation Reset sequence to
On monobus, chip receives the order of this wake-up.Activation Response response will be sent.It can on monobus
Signal is dragged down for about 120us to see.
Step 4, host are sent in Skip DEV order to bus, subsequently into FUNC Command sequence, are sent
Convert Temp&Humi order, all chips enter the conversion of temperature and humidity on monobus.Wait 112 milliseconds it
Afterwards, temperature and humidity converts.
Step 5, host persistently drag down the time 300us of monobus again, i.e., transmission Activation Reset sequence to
On monobus, chip receives the order of this wake-up.Activation Response response will be sent.It can on monobus
Signal is dragged down for about 120us to see.
Step 6, host are sent in Match DEV order to bus, and the DEV_ID0 chip of preservation is then obtained from memory
Information is sent it on monobus.Into FUNC Command sequence, Read Scratchpad order is sent, on monobus
9 bytes that will appear selected chip are data, so as to which temperature and humidity value is calculated.
Step 5 and step 6 are repeated, the value of the temperature and humidity of all chips on available monobus.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of monobus temperature and humidity integrated sensor chip, which is characterized in that including：Temperature sensing unit, humidity sensor list
Member, selector, analog-digital converter, register group, single bus interface and warning circuit；
The temperature sensing unit is connect by the selector with the analog-digital converter with the humidity sensing unit, described
Analog-digital converter, the single bus interface and the warning circuit are separately connected the register, the single bus interface and outer
The communication of portion's single bus data, receives from external temperature and humidity conversion command, and sends temperature information, humidity information to outside
And warning message；
The register group includes：Temperature register low level, temperature register is high-order, humidity register low level, humidity register
A high position, TH register, TL register, HH register, configuration register and check register.
2. monobus temperature and humidity integrated sensor chip according to claim 1, which is characterized in that the single bus data
Communication includes：
What outside was sent by monobus to monobus temperature and humidity integrated sensor chip：Activation order, activation are single total
Line temperature and humidity integrated sensor chip；DEV order identifies monobus temperature and humidity integrated sensor chip；FUNC order, to single total
Line temperature and humidity integrated sensor chip is inquired and is operated；And
Monobus temperature and humidity integrated sensor chip does the Activation order, DEV order and FUNC order that receive
Corresponding response out.
3. monobus temperature and humidity integrated sensor chip according to claim 2, which is characterized in that the Activation
Order is a lasting low level signal, and the duration is greater than 220us, is less than 1s；The monobus temperature and humidity is integrated to be passed
Sensor chip is replied the lasting low level Activation of 120us to the Activation order received and is responded.
4. monobus temperature and humidity integrated sensor chip according to claim 2, which is characterized in that the DEV order packet
Include what outside was sent by monobus to monobus temperature and humidity integrated sensor chip：
Read DEV order, monobus temperature and humidity integrated sensor chip send out chip information after receiving Read DEV order
Give outside；
Match DEV order, the chip information and the chip of itself that the judgement of monobus temperature and humidity integrated sensor chip receives
Whether information matches, and returns to the activation stage if mismatching, and inquiry and operational phase are entered if matching；
Search DEV order, monobus temperature and humidity integrated sensor chip response concurrent send chip information and chip information to negate
As a result, outside, which recognizes, returns to confirmation chip information after chip information, monobus temperature and humidity integrated sensor chip receives
Afterwards, if it is confirmed that chip information is not inconsistent with chip information, then the activation stage is returned to, enters if matching and inquires and operate rank
Section；
Temp Alarm order, it is external to identify the list for whether having temperature alarming in monobus by sending Temp Alarm order
Bus temperature and humidity integrated sensor chip；
Humi Alarm order, it is external to identify the list for whether having humidity alarm in monobus by sending Humi Alarm order
Bus temperature and humidity integrated sensor chip；
Skip order, ignores identification information, to be directly entered inquiry and operational phase.
5. monobus temperature and humidity integrated sensor chip according to claim 2, which is characterized in that the FUNC order packet
Include what outside was sent by monobus to monobus temperature and humidity integrated sensor chip：
Convert Temp order, monobus temperature and humidity integrated sensor chip send temperature after receiving Convert Temp order
Degree conversion；
Convert Humi order, monobus temperature and humidity integrated sensor chip receive send after Convert Humi order it is wet
Degree conversion；
Convert Temp&Humi order, monobus temperature and humidity integrated sensor chip receive Convert Temp&Humi life
The conversion of temperature and humidity occurs after order；
Copy Scratchpad order, after monobus temperature and humidity integrated sensor chip receives Copy Scratchpad order
The value of TH register, TL register, HH register is written in internal non-volatile storage unit；
Write Scratchpad order, monobus temperature and humidity integrated sensor chip receive Write Scratchpad order
After write data into TH register, TL register, configuration register and HH register；
Read Scratchpad order, after monobus temperature and humidity integrated sensor chip receives Read Scratchpad order
The value and check byte of transmitter register；
Recall Mem order, monobus temperature and humidity integrated sensor chip will be internal non-easy after receiving Recall Mem order
The data stored in the property lost storage unit are read back in corresponding register；
Read Power Supply order, monobus temperature and humidity integrated sensor chip receive Read Power Supply life
After order, powers if it is parasitism, 0 will be replied, otherwise reply 1.
6. monobus temperature and humidity integrated sensor chip according to claim 5, which is characterized in that the FUNC order is also
Including：
Other orders, monobus temperature and humidity integrated sensor chip receive other orders and then return to the activation stage.
7. monobus temperature and humidity integrated sensor chip according to claim 5, which is characterized in that monobus temperature and humidity collection
After receiving Read Scratchpad order at sensor chip, the value and check byte of the register of transmission include：
Byte0：Temperature register low level；Byte1：Temperature register is high-order；Byte2：TH register；Byte3：TL register；
Byte4：Configuration register；Byte5：Humidity register low level；Byte6：Humidity register is high-order；Byte7：HH register；
Byte8：Check register.
8. monobus temperature and humidity integrated sensor chip according to claim 7, which is characterized in that the humidity sensor list
Member passes through aperture and contacting external air in the encapsulation of monobus temperature and humidity integrated sensor chip.
9. a kind of means of communication of monobus temperature and humidity integrated sensor chip, which is characterized in that the monobus temperature and humidity collection
It is communicated, is received from external temperature and humidity conversion command with external single bus data by single bus interface at sensor chip,
And temperature information, humidity information and warning message are sent to outside.
10. the means of communication of monobus temperature and humidity integrated sensor chip according to claim 9, which is characterized in that institute
Stating single bus data communication includes：
What outside was sent by monobus to monobus temperature and humidity integrated sensor chip：Activation order, activation are single total
Line temperature and humidity integrated sensor chip；DEV order identifies monobus temperature and humidity integrated sensor chip；FUNC order, to single total
Line temperature and humidity integrated sensor chip is inquired and is operated；And
Monobus temperature and humidity integrated sensor chip does the Activation order, DEV order and FUNC order that receive
Corresponding response out.
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| CN109495363A (en) * | 2018-12-13 | 2019-03-19 | 上海申矽凌微电子科技有限公司 | A kind of single bus data transmission chip and method |
| CN110588433A (en) * | 2019-08-28 | 2019-12-20 | 南京理工大学 | Fire monitoring system of new energy automobile lithium battery box |
| CN111476991A (en) * | 2020-03-06 | 2020-07-31 | 上海申矽凌微电子科技有限公司 | Double-point temperature measurement system and method suitable for master-slave single bus communication protocol |
| CN113518267A (en) * | 2021-03-15 | 2021-10-19 | 上海申矽凌微电子科技有限公司 | Concentrator device of pulse counting agreement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557664A (en) * | 2004-01-16 | 2004-12-29 | 湖南科技大学 | Bus type intelligent sensor set for state monitoring |
| CN2898985Y (en) * | 2006-04-17 | 2007-05-09 | 夏东培 | Single-bus temperature and humidity data-collecting transmitter |
| US20100230766A1 (en) * | 2009-03-12 | 2010-09-16 | Infineon Technologies Ag | Sensor device and method |
| CN202255679U (en) * | 2011-09-16 | 2012-05-30 | 上海音达科技实业有限公司 | Temperature and humidity sensor capable of being combined in network and single bus networking system thereof |
| CN202710107U (en) * | 2012-07-25 | 2013-01-30 | 黄军辉 | Single-bus digital temperature and humidity sensor and online real-time monitoring system thereof |
| CN203433398U (en) * | 2013-09-18 | 2014-02-12 | 皖西学院 | Digital grain depot temperature-humidity monitoring system based on AT89C52 and DHT11 |
| CN203824578U (en) * | 2014-02-20 | 2014-09-10 | 广州海谷电子科技有限公司 | Digital temperature and humidity sensor |
-
2018
- 2018-06-05 CN CN201810578131.6A patent/CN108896107B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557664A (en) * | 2004-01-16 | 2004-12-29 | 湖南科技大学 | Bus type intelligent sensor set for state monitoring |
| CN2898985Y (en) * | 2006-04-17 | 2007-05-09 | 夏东培 | Single-bus temperature and humidity data-collecting transmitter |
| US20100230766A1 (en) * | 2009-03-12 | 2010-09-16 | Infineon Technologies Ag | Sensor device and method |
| CN202255679U (en) * | 2011-09-16 | 2012-05-30 | 上海音达科技实业有限公司 | Temperature and humidity sensor capable of being combined in network and single bus networking system thereof |
| CN202710107U (en) * | 2012-07-25 | 2013-01-30 | 黄军辉 | Single-bus digital temperature and humidity sensor and online real-time monitoring system thereof |
| CN203433398U (en) * | 2013-09-18 | 2014-02-12 | 皖西学院 | Digital grain depot temperature-humidity monitoring system based on AT89C52 and DHT11 |
| CN203824578U (en) * | 2014-02-20 | 2014-09-10 | 广州海谷电子科技有限公司 | Digital temperature and humidity sensor |
Non-Patent Citations (2)
| Title |
|---|
| YONGLIANG0801: "DS2438中文数据手册", 《百度文库》 * |
| 高芳 等: "单总线技术在温湿度监测系统中的应用", 《电子测量与仪器学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495363A (en) * | 2018-12-13 | 2019-03-19 | 上海申矽凌微电子科技有限公司 | A kind of single bus data transmission chip and method |
| CN109444228A (en) * | 2018-12-19 | 2019-03-08 | 北京中科银河芯科技有限公司 | A kind of chip of the measurement grain moisture content of monobus communication |
| CN110588433A (en) * | 2019-08-28 | 2019-12-20 | 南京理工大学 | Fire monitoring system of new energy automobile lithium battery box |
| CN111476991A (en) * | 2020-03-06 | 2020-07-31 | 上海申矽凌微电子科技有限公司 | Double-point temperature measurement system and method suitable for master-slave single bus communication protocol |
| CN113518267A (en) * | 2021-03-15 | 2021-10-19 | 上海申矽凌微电子科技有限公司 | Concentrator device of pulse counting agreement |
| CN113518267B (en) * | 2021-03-15 | 2022-12-20 | 上海申矽凌微电子科技有限公司 | Concentrator device of pulse counting agreement |
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