CN2683029Y - Detector for automobile driver choice reaction - Google Patents
Detector for automobile driver choice reaction Download PDFInfo
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- CN2683029Y CN2683029Y CN 200420041683 CN200420041683U CN2683029Y CN 2683029 Y CN2683029 Y CN 2683029Y CN 200420041683 CN200420041683 CN 200420041683 CN 200420041683 U CN200420041683 U CN 200420041683U CN 2683029 Y CN2683029 Y CN 2683029Y
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Abstract
The utility model relates to a detector for the automobile driver choice reaction, comprising a key input circuit for inputting the signal, an SCM, a data display circuit, a serial communications interface circuit, an indicating driving circuit, a photoelectric isolation circuit, an energy amplification circuit and a signal display circuit. The utility model adopts the SCM and is designed in one box. The detector for the automobile driver choice reaction can exactly detect the reaction time of the driver in the complicated situation. The detection precision is 0. 01 second. Furthermore the frequency of the reaction can be noted. The utility model adopts the standard serial communications interface circuit, realizes the number intelligent control detection of an epigyny computer, overcomes the disturbances of the mental detection and the physical detection by the human, and improves the reliability of the detection date. Three reaction switches are controlled by the left hand, the right hand and the right foot. The testee presses the switches when the testee enters into the preparative states. When the testee responses the detection signal, the testee only need lifting the hand or the foot a little and the testee is compelled in the correct preparative reaction states.
Description
Technical field
This utility model belongs to driver's professionalism checkout equipment technical field, is specifically related to driver's selective response detector.
Background technology
According to recent statistics, China's road traffic accident year death toll has reached 110,000 people at present, cause heavy economic losses for the country and people's lives and properties, the main cause of vehicle accident is due to the defective of driver psychology physiological fitness, and selective response is one of important indicator of check driving quality.
The selective response detector is to detect the speed that the driver reacts in the traffic environment of complexity and the correctness key equipment of reaction.Because the stability in the length of time of driver's reaction, response time and wrong reaction what etc. characteristic and vehicle accident confidential relation arranged.
At present, domestic have the people once according to Japan's product of the fifties, copied same category of device, and its structure is continued to use split type, and detection signal shows and the control unit separated into two parts; Control unit adopts simple timing, and existing does not have preservation to each time testing result, wrong reaction is not handled, fully by instrumentation personnel hand-kept result.Therefore, the subjects is detected the influence be subject to the instrumentation personnel, this checkout equipment exists and detects that data reliability is poor, functions of the equipments are single, does not have the communication interface with host computer, shortcomings such as use inconvenience again.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned detecting instrument, provide a kind of simple in structure, result of use good, accuracy of detection is high, the response time is accurate, detect the reliable driver's selective response of data detector.
Solving the problems of the technologies described above the technical scheme that is adopted is that it comprises:
The key input circuit of input signal.To the one-chip computer that complete machine is controlled, input termination key input circuit.Data display circuit, input order sheet computer.Serial communication interface circuit, this circuit is connected with one-chip computer.The indication drive circuit, input order sheet computer.Photoelectric isolating circuit, input termination indication drive circuit.Power amplification circuit, input termination photoelectric isolating circuit.Signal display circuit, input termination power amplification circuit.
Key input circuit of the present utility model comprises: two decoding circuits, K switch 1～K switch 9, one end of the input termination switch K1～K switch 5 of a decoding circuit, outfan order sheet computer, an end of the input termination switch K6～K switch 9 of another decoding circuit, outfan order sheet computer.
A decoding circuit of the present utility model comprises integrated circuit U1, R2, exclusion R1,11 feet of integrated circuit U1 connect an end of K switch 1 and connect the 5v positive source by R2,12 feet connect an end of K switch 2 and 2 feet that row organizes R1,13 feet connect an end of K switch 3 and 3 feet that row organizes R1,1 foot connects an end of K switch 4 and 4 feet that row organizes R1,2 feet connect an end of K switch 5 and 5 feet that row organizes R1,3 feet～5 feet and 10 feet run in respectively and organize 6 feet～9 feet of R1,9 feet of integrated circuit U1,7 feet, 6 feet and 14 foot order sheet computers, 1 foot that row organizes R1 connects the 5v positive source, the other end ground connection of K switch 1～K switch 5.Another decoding circuit of the present utility model comprises integrated circuit U2, R11, exclusion R10,11 feet of integrated circuit U2～13 feet connect run in 5 feet～9 feet, 10 feet of group R10 of an end of K switch 6～K switch 8 and 2 feet～4 feet, 1 foot～5 feet that row organizes R10 respectively and connect the 5v positive source by R11,9 feet of integrated circuit U2,7 feet, 6 feet, 14 foot order sheet computers, 1 foot that row organizes R10 connects the 5v positive source, the other end ground connection of K switch 6～K switch 9.
This utility model is compared with existing detecting instrument, has adopted one-chip computer, and one case design can accurately detect the response time of driver to complex situations, and accuracy of detection is 0.01 second, and can write down the wrong number of times of reaction.Adopted the standard serial communication interface circuit, realized that host computer carries out the digital intelligent control detection, overcome people in the psychological physiological detection, improved and detected the reliability of data, and realized the safe transmission of data because of disturbing.Three reactive switches of left hand, the right hand and right crus of diaphragm control adopt the normally closed type switch, press switch when the subjects enters SBR.When the subjects replys detection signal, only need hands or foot to lift slightly and get final product, force the subjects to be in correct ready reaction state, improved the accuracy of detection reaction time.It has reasonable in design, simple in structure, the response time is accurate, multiple functional, easy to use, detect advantages such as data are reliable, can be used for transport driver recruitment, detection on duty and the training in rotation of being employed detects.
Description of drawings
Fig. 1 is an electrical principle block diagram of the present utility model.
Fig. 2 is the electronic circuit schematic diagram of an embodiment of this utility model governor circuit.
Fig. 3 is the electronic circuit schematic diagram of an embodiment of this utility model photoelectricity isolation signals drive circuit.
Fig. 4 is the electronic circuit schematic diagram of an embodiment of this utility model data display circuit.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described, but this utility model is not limited to these
Embodiment.
Fig. 1 is an electrical principle block diagram of the present utility model, referring to Fig. 1.In Fig. 1, this utility model is to be connected and composed by key input circuit, one-chip computer, serial communication interface circuit, data display circuit, indication drive circuit, photoelectric isolating circuit, power amplification circuit, signal display circuit.The outfan order sheet computer of key input circuit, one-chip computer is connected with serial communication interface circuit, the output termination data display circuit of one-chip computer and indication drive circuit, the output termination photoelectric isolating circuit of indication drive circuit, the output termination power amplification circuit of photoelectric isolating circuit, the output termination signal display circuit of power amplification circuit.
In Fig. 2, the key input circuit of present embodiment is by integrated circuit U1, integrated circuit U2, R2, R11, row organizes R1, row organizes R10, K switch 1～K switch 9 connects and composes, integrated circuit U1 wherein, R2, row organizes R1 and connects into a decoding circuit, integrated circuit U2, R11, row organizes R10 and connects into another decoding circuit, the model of integrated circuit U1 and integrated circuit U2 is 74LS147, K switch 1, K switch 2, K switch 3 is respectively the danger signal that single detects, yellow signal, the setting key of blue chrominance signal, K switch 6, K switch 8, K switch 9 is respectively the driver to danger signal, yellow signal, the reactive switches of blue chrominance signal, K switch 5 is the working method setting key, K switch 4 is for detecting acknowledgement key, and switch RES is a reset key.11 feet of integrated circuit U1 connect an end of K switch 1 and connect 5v positive source, 12 feet by R2 and connect run in respectively 6 feet～9 feet of group R1 of 5 feet, 3～5 feet and 10 feet that 4 feet that 3 feet that an end of K switch 2 and 2 feet that row organizes R1, a end that 13 feet connect K switch 3 and row organize R1, a end that 1 foot connects K switch 4 and row organize R1, a end that 2 feet connect K switch 5 and row organize R1,9 feet of integrated circuit U1,7 feet, 6 feet and 14 foot order sheet computers, 1 foot that row organizes R1 connects the 5v positive source.11 feet of integrated circuit U2～13 feet connect run in 5 feet～9 feet, 10 feet of group R10 of an end of K switch 6～K switch 8 and 2 feet～4 feet, 1 foot～5 feet that row organizes R10 respectively and connect the 5v positive source by R11,9 feet of integrated circuit U2,7 feet, 6 feet, 14 foot order sheet computers, 1 foot that row organizes R10 connects the 5v positive source.The other end ground connection of K switch 1～K switch 9.
The one-chip computer of present embodiment is connected and composed by integrated circuit U3, integrated circuit U4, integrated circuit U8A～integrated circuit U8D, R12～R14, R22, R23, C1～C5, C9, E1, E2, E4, E5, agitator Y1, switch RES, the model of integrated circuit U3 is 89C51, the model of integrated circuit U4 is 8155, and the model of integrated circuit U8A～integrated circuit U8D is 74LS04.1 foot of integrated circuit U3～4 feet connect 9 feet of integrated circuit U1 respectively, 7 feet, 6 feet, 14 feet, 5 feet of integrated circuit U3～8 feet connect 9 feet of integrated circuit U2 respectively, 7 feet, 6 feet, 14 feet, 10 feet and 11 feet of integrated circuit U3 connect serial communication interface circuit, 13 feet connect 4 feet of integrated circuit U8B, 12 feet connect 2 feet of integrated circuit U8A, 31 feet connect the 5v positive source, 9 feet of integrated circuit U3 meet R12, R13, E4, the reset circuit that switch RES connects, 18 feet and 19 feet of integrated circuit U3 meet C3, C4, the oscillating circuit that agitator Y1 connects, 39 feet of integrated circuit U3～32 feet connect 12 feet～19 feet of integrated circuit U4,21 feet connect 8 feet of integrated circuit U4,22 feet connect 7 feet of integrated circuit U4,17 feet connect 9 feet of integrated circuit U4,16 feet connect 10 feet of integrated circuit U4,30 feet connect 11 feet of integrated circuit U4,14 feet connect 6 feet of integrated circuit U8C.The end ground connection of 1 foot of integrated circuit U8A and C5, the other end of C5 passes through R22 ground connection, the end ground connection of 3 feet of integrated circuit U8B and C9, the other end of C9 is by R23 ground connection.21 feet of integrated circuit U4～28 feet and 37 feet～39 feet connect that indication drive circuit, 1 foot and 2 feet and 5 feet connect that indication drive circuit, 29～36 feet connect 8 feet that data display circuit, 3 feet meet integrated circuit U8D, a end that 4 feet meet E5 and by R14 ground connection, another termination 5v positive source of E5.
The indication drive circuit of present embodiment by integrated circuit U5, integrated circuit U6, light emitting diode D1～light emitting diode D12, R4～R9, R16～R21, row organize R3, row organizes R15 and connects and composes, integrated circuit U5 and the model that meets integrated circuit U6 are ULN2803.1 foot of integrated circuit U5～8 feet connect 21 feet～28 feet of integrated circuit U4 respectively, 11 feet～18 feet are the negative pole of sending and receiving optical diode D8～light emitting diode D1 and 2 feet～9 feet that row organizes R3 respectively, the IN1 of integrated circuit U6～IN6 mouth connects PC0～PC5 mouth of integrated circuit U4,18 feet and 17 feet are negative pole and the negative pole of light emitting diode D10 and 9 feet and 8 feet that row organizes R15 of sending and receiving optical diode D9 respectively, 16 feet～13 feet run in respectively and organize 7 feet～4 feet of R15 and connect photoelectric isolating circuit, 12 feet and 11 feet are negative pole and the negative pole of light emitting diode D12 and 3 feet and 2 feet that row organizes R15 of sending and receiving optical diode D11 respectively, the positive pole of light emitting diode D 1～light emitting diode D6 connects the 5v positive source by R4～R9 respectively, the positive pole of light emitting diode D7～light emitting diode D12 connects the 5v positive source by R16～R21 respectively, and row organizes 1 foot of R3 and 1 foot that row organizes R15 connects the 5v positive source.
The serial communication interface circuit of present embodiment is connected and composed by integrated circuit U7, E3, E6～E9, socket J3, and the model of integrated circuit U7 is MAX232.11 feet of integrated circuit U7 connect 11 feet of integrated circuit U3 respectively with 12 feet and 1 foot of 10 feet, 13 feet and 14 feet difference combination hub J3 also is connected with external computer by socket J3 with 2 feet.Integrated circuit U3 and integrated circuit U7 and peripheral components constitute standard RS232 serial communication interface circuit, accept host computer control.
In Fig. 3, the photoelectric isolating circuit of present embodiment is connected and composed by integrated circuit U13～integrated circuit U16, R24～R29, R72, R73, and the model of integrated circuit U13～integrated circuit U16 is 4N25.16 feet～14 feet, 1 foot that 2 feet of integrated circuit U13～integrated circuit U15 meet integrated circuit U6 by R24～R26 respectively connect respectively 5v positive source, 5 feet respectively by R27～R29 connect the 24v positive source, 4 feet connect power amplification circuit, 13 feet, 1 foot that 2 feet of integrated circuit U16 meet integrated circuit U6 by R72 connect 5v positive source, 5 feet by R73 connect the 24v positive source, 4 feet connect power amplification circuit.
The power amplification circuit of present embodiment is connected and composed by audion N1～audion N4, R30～R37, R74～R77, C6～C8, C10.Audion N1, R30, R31, R35, C6 connects into on-off circuit, audion N2, R32, R33, R36, C7 connects into on-off circuit, audion N3, R34, R37, R74, C8 connects into on-off circuit, audion N4, R75～R77, C10 connects into on-off circuit, the base stage of audion N1 connects 4 feet of integrated circuit U13 by R30, emitter stage connects signal display circuit by R35, the base stage of audion N2 connects 4 feet of integrated circuit U14 by R32, emitter stage connects signal display circuit by R36, the base stage of audion N3 connects 4 feet of integrated circuit U15 by R34, emitter stage connects signal display circuit by R37, and the base stage of audion N4 connects 4 feet of integrated circuit U16 by R75, emitter stage connects signal display circuit by R77.
The signal display circuit of present embodiment is connected and composed by buzzer BELL, red eye DS1, amber lamp DS2, blue chrominance signal lamp DS3, diode D13～diode D16, R38～R40, R78.The end of buzzer BELL connects the emitter stage of audion N1 by R35 and connects the positive pole of diode D14 by R38, the end of red eye DS1 connects the emitter stage of audion N2 by R36 and connects the positive pole of diode D13 by R39, the end of amber lamp DS2 connects the emitter stage of audion N3 by R37 and connects the positive pole of diode D15 by R40, the end of blue chrominance signal lamp DS3 connects the emitter stage of audion N4 and connects the positive pole of diode D16 by R78 by R77, and the negative pole of the other end of buzzer BELL and diode D13～diode D16 connects the 24v positive source.
In Fig. 4, the data display circuit of present embodiment is connected and composed by integrated circuit U9～integrated circuit U12, charactron DS1～charactron DS4, R41～R71, the model of integrated circuit U9～integrated circuit U12 is CD4511, and the model of charactron DS1～charactron DS4 is GSS-0801.5 feet of integrated circuit U9 connect 33 feet of integrated circuit U4,5 feet of integrated circuit U10 connect 34 feet of integrated circuit U4,5 feet of integrated circuit U11 connect 35 feet of integrated circuit U4,5 feet of integrated circuit U12 connect 36 feet of integrated circuit U4,6 feet of integrated circuit U9～integrated circuit U12 connect 32 feet of integrated circuit U4,2 feet connect 31 feet of integrated circuit U4,1 foot connects 30 feet of integrated circuit U4,7 feet connect 29 feet of integrated circuit U4,9 feet of integrated circuit U9～15 feet connect 4 feet of charactron DS1 respectively by R41～R47,10 feet, 12 feet, 14 feet, 1 foot, 13 feet, 2 feet, 9 feet of integrated circuit U10～15 feet connect 4 feet of charactron DS2 respectively by R49～R55,10 feet, 12 feet, 14 feet, 1 foot, 13 feet, 2 feet, 9 feet of integrated circuit U11～15 feet connect 4 feet of charactron DS3 respectively by R57～R63,10 feet, 12 feet, 14 feet, 1 foot, 13 feet, 2 feet, 9 feet of integrated circuit U12～15 feet connect 4 feet of charactron DS4 respectively by R65～R71,10 feet, 12 feet, 14 feet, 1 foot, 13 feet, 2 feet.
Operation principle of the present utility model is as follows:
By K switch 5 finish single, continuously, the switching of exercise and four kinds of working methods of reading, by light emitting diode D5, light emitting diode D6, the luminous indication successively of light emitting diode D7, light emitting diode D8.K switch 4 is finished and is detected beginning or detection signal affirmation, carries out timing by integrated circuit U3 and detects.When single detects, produce a kind of signal, the driver is carried out one-time detection.When exercise detects, produce signal respectively 8 times, carry out 8 times and detect.During continuous detecting, produce signal randomly respectively 16 times, carry out 16 times and detect.During reading,, demonstrate the detection data successively by data display circuit by K switch 4.Detect time of driver's reaction and reaction errors number and type by K switch 6, K switch 8, K switch 9.
During instrument work, produce danger signal, yellow signal, blue chrominance signal and acoustical signal under one-chip computer control, the driver reacts according to four kinds of signals respectively.To danger signal, driver's right crus of diaphragm console switch K9,13 feet input from integrated circuit U2,9 feet, 7 feet, 6 feet, 14 foot feet from integrated circuit U2 after deciphering are exported binary-coded decimal to 5 feet that meet integrated circuit U3～8 feet, discharge constantly time value from sending danger signal to right crus of diaphragm console switch K9 by integrated circuit U3 record, as driver's the right crus of diaphragm response time.To yellow signal, driver's left-handed operation K switch 6,11 feet input from integrated circuit U2, after deciphering, export 5 feet～8 feet of binary-coded decimal to integrated circuit U3 from 9 feet, 7 feet, 6 feet, the 14 foot feet that meet integrated circuit U2, discharge constantly time value from sending yellow signal to left-handed operation K switch 6 by integrated circuit U3 record, as driver's the left hand response time.To blue chrominance signal, driver's right-hand operated K switch 8,12 feet input from integrated circuit U2, after deciphering, export binary-coded decimal to 5 feet that meet integrated circuit U3～8 feet from 9 feet, 7 feet, 6 feet, 14 feet that meet integrated circuit U2, discharge constantly time value from sending blue chrominance signal to right-hand operated K switch 8 by integrated circuit U3 record, as driver's the right hand response time.
K switch 1 signal is from the 11 feet input of integrated circuit U1, output to 1 foot～4 feet of integrated circuit U3 from 9 feet, 7 feet, 6 feet, 14 feet through integrated circuit U1 decoding, set danger signal by integrated circuit U3, light emitting diode D1 is luminous, realization is carried out the test of danger signal single to the driver, after the driver reacted by K switch 9, light emitting diode D1 extinguished.K switch 2, K switch 3 are deciphered from 12 feet, the input of 13 feet of integrated circuit U1 respectively, 9 feet, 7 feet, 6 feet, 14 feet by integrated circuit U1 output to 1 foot～4 feet that meet integrated circuit U3, set Huang, green signal respectively by integrated circuit U3, light emitting diode D2, light emitting diode D3 are luminous.Can carry out Huang, the test of blue signal single to the driver by K switch 6, K switch 9 equally.When acoustical signal was arranged, light emitting diode D4 was luminous, and driver's left hand, the right hand, right crus of diaphragm all can not be operated.
Integrated circuit U3 arrives data display circuit by PB0～PB7 mouth output test data of integrated circuit U4.The PA0 of integrated circuit U4～PA7 mouth output indicator signal, D1～light emitting diode D8 is luminous through integrated circuit U5 driven for emitting lights diode, indicating operating status.The PC2 of integrated circuit U4～four kinds of detection signals of PC5 mouth output, output to photoelectric isolating circuit through integrated circuit U6 driving, after power amplification circuit drives, output detection signal is to signal display circuit, the red eye DS1 of signal display circuit, amber lamp DS2, blue chrominance signal lamp DS3 are luminous, and buzzer BELL sounds.
This utility model is worked under the programme-control of one-chip computer, writes down the particular data of each response time of driver and wrong reaction number of times and type automatically.Integrated circuit U3 serial line interface constitutes standard RS232 serial communication interface circuit by integrated circuit U7 and peripheral components, accepts host computer control.
Claims (3)
1, a kind of driver's selective response detector is characterized in that it comprises:
The key input circuit of input signal;
To the one-chip computer that complete machine is controlled, input termination key input circuit;
Data display circuit, input order sheet computer;
Serial communication interface circuit, this circuit is connected with one-chip computer;
The indication drive circuit, input order sheet computer;
Photoelectric isolating circuit, input termination indication drive circuit;
Power amplification circuit, input termination photoelectric isolating circuit;
Signal display circuit, input termination power amplification circuit.
2, according to the described driver's selective response of claim 1 detector, it is characterized in that said key input circuit comprises: two decoding circuits, K switch 1～K switch 9, one end of the input termination switch K1～K switch 5 of a decoding circuit, outfan order sheet computer, an end of the input termination switch K6～K switch 9 of another decoding circuit, outfan order sheet computer.
3, according to the described driver's selective response of claim 2 detector, it is characterized in that: a said decoding circuit comprises integrated circuit U1, R2, exclusion R1,11 feet of integrated circuit U1 connect an end of K switch 1 and connect the 5v positive source by R2,12 feet connect an end of K switch 2 and 2 feet that row organizes R1,13 feet connect an end of K switch 3 and 3 feet that row organizes R1,1 foot connects an end of K switch 4 and 4 feet that row organizes R1,2 feet connect an end of K switch 5 and 5 feet that row organizes R1,3 feet～5 feet and 10 feet run in respectively and organize 6 feet～9 feet of R1,9 feet of integrated circuit U1,7 feet, 6 feet and 14 foot order sheet computers, 1 foot that row organizes R1 connects the 5v positive source, the other end ground connection of K switch 1～K switch 5; Said another decoding circuit comprises integrated circuit U2, R11, exclusion R10,11 feet of integrated circuit U2～13 feet connect run in 5 feet～9 feet, 10 feet of group R10 of an end of K switch 6～K switch 8 and 2 feet～4 feet, 1 foot～5 feet that row organizes R10 respectively and connect the 5v positive source by R11,9 feet of integrated circuit U2,7 feet, 6 feet, 14 foot order sheet computers, 1 foot that row organizes R10 connects the 5v positive source, the other end ground connection of K switch 6～K switch 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041683 CN2683029Y (en) | 2004-03-22 | 2004-03-22 | Detector for automobile driver choice reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041683 CN2683029Y (en) | 2004-03-22 | 2004-03-22 | Detector for automobile driver choice reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2683029Y true CN2683029Y (en) | 2005-03-09 |
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ID=34607869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041683 Expired - Fee Related CN2683029Y (en) | 2004-03-22 | 2004-03-22 | Detector for automobile driver choice reaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2683029Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320523B (en) * | 2007-06-08 | 2013-10-30 | 沙乐工程公司 | Train travelling simulation system |
| CN113576404A (en) * | 2021-07-07 | 2021-11-02 | 古雪花 | Reaction sensitivity tester control circuit for hospital |
-
2004
- 2004-03-22 CN CN 200420041683 patent/CN2683029Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320523B (en) * | 2007-06-08 | 2013-10-30 | 沙乐工程公司 | Train travelling simulation system |
| CN113576404A (en) * | 2021-07-07 | 2021-11-02 | 古雪花 | Reaction sensitivity tester control circuit for hospital |
| CN113576404B (en) * | 2021-07-07 | 2024-04-26 | 古雪花 | Control circuit of reaction sensitivity tester for hospital |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |